NAS-133545 / 25.04 / Fix loading indicator

[undsoft]

Changes
Fixes spinner that broke because of strict null fixes.
Add some unrelated defensive coding checks in terminal and fixes tooltip in API keys.

Testing:

Check anything that shows a spinner.

[bugclerk]

Jira URL: https://ixsystems.atlassian.net/browse/NAS-133545

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 8 lines in your changes missing coverage. Please review.

Project coverage is 82.74%. Comparing base (248fd2c) to head (23fe20f).
Report is 4 commits behind head on master.

✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
...terminal/components/terminal/terminal.component.ts	0.00%	7 Missing ⚠️
src/app/modules/loader/app-loader.service.ts	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #11333      +/-   ##
==========================================
- Coverage   82.75%   82.74%   -0.02%     
==========================================
  Files        1654     1654              
  Lines       59132    59137       +5     
  Branches     6217     6218       +1     
==========================================
- Hits        48934    48932       -2     
- Misses      10198    10205       +7     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[bugclerk]

This PR has been merged and conversations have been locked.
If you would like to discuss more about this issue please use our forums or raise a Jira ticket.