Improve status displayed on camera stream

[Gold872]

• Display error message (no stack trace) if exception is thrown
• Display whether or not it's waiting for an image to be sent

Should help with troubleshooting camera streams that won't display

[codecov]

❌ 3 Tests Failed:

Tests completed	Failed	Passed	Skipped
286	3	283	0

View the top 3 failed tests by shortest run time

.home.runner.work.elastic_dashboard.elastic_dashboard.test.pages.dashboard_page [Window Manipulation]: Closing window (All changes saved)

Stack Traces | 600s run time

Error #1: 'package:flutter_test/src/binding.dart': Failed assertion: line 985 pos 14: '_pendingExceptionDetails != null': A test overrode FlutterError.onError but either failed to return it to its original state, or had unexpected additional errors that it could not handle. Typically, this is caused by using expect() before restoring FlutterError.onError.

Stacktrace:
dart:core                                           _AssertionError._throwNew
package:flutter_test/src/binding.dart 985:14        TestWidgetsFlutterBinding._runTest.handleUncaughtError
package:flutter_test/src/binding.dart 990:9         TestWidgetsFlutterBinding._runTest.<fn>
===== asynchronous gap ===========================
dart:async                                          _CustomZone.registerBinaryCallback
package:flutter_test/src/binding.dart 1006:5        TestWidgetsFlutterBinding._runTestBody
dart:async                                          _CustomZone.runBinary
package:flutter_test/src/binding.dart 995:14        TestWidgetsFlutterBinding._runTest
package:flutter_test/src/binding.dart 1475:24       AutomatedTestWidgetsFlutterBinding.runTest.<fn>
package:fake_async/fake_async.dart 182:54           FakeAsync.run.<fn>.<fn>
dart:async                                          runZoned
package:clock/src/default.dart 52:10                withClock
package:fake_async/fake_async.dart 182:22           FakeAsync.run.<fn>
dart:async                                          runZoned
package:fake_async/fake_async.dart 182:7            FakeAsync.run
package:flutter_test/src/binding.dart 1472:15       AutomatedTestWidgetsFlutterBinding.runTest
package:flutter_test/src/widget_tester.dart 175:24  testWidgets.<fn>
\n\n\nError #2: TimeoutException after 0:10:00.000000: Test timed out after 10 minutes.

Stacktrace:
dart:isolate  _RawReceivePort._handleMessage

.home.runner.work.elastic_dashboard.elastic_dashboard.test.pages.dashboard_page [Loading and Saving]: Save layout (shortcut)

Stack Traces | 600s run time

Error #1: 'package:flutter_test/src/binding.dart': Failed assertion: line 985 pos 14: '_pendingExceptionDetails != null': A test overrode FlutterError.onError but either failed to return it to its original state, or had unexpected additional errors that it could not handle. Typically, this is caused by using expect() before restoring FlutterError.onError.

Stacktrace:
dart:core                                           _AssertionError._throwNew
package:flutter_test/src/binding.dart 985:14        TestWidgetsFlutterBinding._runTest.handleUncaughtError
package:flutter_test/src/binding.dart 990:9         TestWidgetsFlutterBinding._runTest.<fn>
===== asynchronous gap ===========================
dart:async                                          _CustomZone.registerBinaryCallback
package:flutter_test/src/binding.dart 1006:5        TestWidgetsFlutterBinding._runTestBody
dart:async                                          _CustomZone.runBinary
package:flutter_test/src/binding.dart 995:14        TestWidgetsFlutterBinding._runTest
package:flutter_test/src/binding.dart 1475:24       AutomatedTestWidgetsFlutterBinding.runTest.<fn>
package:fake_async/fake_async.dart 182:54           FakeAsync.run.<fn>.<fn>
dart:async                                          runZoned
package:clock/src/default.dart 52:10                withClock
package:fake_async/fake_async.dart 182:22           FakeAsync.run.<fn>
dart:async                                          runZoned
package:fake_async/fake_async.dart 182:7            FakeAsync.run
package:flutter_test/src/binding.dart 1472:15       AutomatedTestWidgetsFlutterBinding.runTest
package:flutter_test/src/widget_tester.dart 175:24  testWidgets.<fn>
\n\n\nError #2: TimeoutException after 0:10:00.000000: Test timed out after 10 minutes.

Stacktrace:
dart:isolate  _RawReceivePort._handleMessage

.home.runner.work.elastic_dashboard.elastic_dashboard.test.pages.dashboard_page [Loading and Saving]: Save layout (button)

Stack Traces | 600s run time

Error #1: 'package:flutter_test/src/binding.dart': Failed assertion: line 985 pos 14: '_pendingExceptionDetails != null': A test overrode FlutterError.onError but either failed to return it to its original state, or had unexpected additional errors that it could not handle. Typically, this is caused by using expect() before restoring FlutterError.onError.

Stacktrace:
dart:core                                           _AssertionError._throwNew
package:flutter_test/src/binding.dart 985:14        TestWidgetsFlutterBinding._runTest.handleUncaughtError
package:flutter_test/src/binding.dart 990:9         TestWidgetsFlutterBinding._runTest.<fn>
===== asynchronous gap ===========================
dart:async                                          _CustomZone.registerBinaryCallback
package:flutter_test/src/binding.dart 1006:5        TestWidgetsFlutterBinding._runTestBody
dart:async                                          _CustomZone.runBinary
package:flutter_test/src/binding.dart 995:14        TestWidgetsFlutterBinding._runTest
package:flutter_test/src/binding.dart 1475:24       AutomatedTestWidgetsFlutterBinding.runTest.<fn>
package:fake_async/fake_async.dart 182:54           FakeAsync.run.<fn>.<fn>
dart:async                                          runZoned
package:clock/src/default.dart 52:10                withClock
package:fake_async/fake_async.dart 182:22           FakeAsync.run.<fn>
dart:async                                          runZoned
package:fake_async/fake_async.dart 182:7            FakeAsync.run
package:flutter_test/src/binding.dart 1472:15       AutomatedTestWidgetsFlutterBinding.runTest
package:flutter_test/src/widget_tester.dart 175:24  testWidgets.<fn>
\n\n\nError #2: TimeoutException after 0:10:00.000000: Test timed out after 10 minutes.

Stacktrace:
dart:isolate  _RawReceivePort._handleMessage

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