feat(editor): store real color values in edgeless

[fundon]

What's Changed!

• adds theme type: ThemeSchema
• adds default theme: DefaultTheme
• stores real color values

[fundon]

Warning

This pull request is not mergeable via GitHub because a downstack PR is open. Once all requirements are satisfied, merge this PR as a stack on Graphite.
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• feat(editor): store real color values in edgeless #9254 👈 (View in Graphite)
• feat(editor): update edgeless color palette #9243
• canary

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[codecov]

Codecov Report

Attention: Patch coverage is 48.07692% with 135 lines in your changes missing coverage. Please review.

Project coverage is 51.37%. Comparing base (bbd7b50) to head (4d32244).

Files with missing lines	Patch %	Lines
...ock/widgets/element-toolbar/change-shape-button.ts	49.01%	22 Missing and 4 partials ⚠️
...widgets/element-toolbar/change-connector-button.ts	11.53%	23 Missing ⚠️
...ock/widgets/element-toolbar/change-brush-button.ts	0.00%	15 Missing ⚠️
...ock/widgets/element-toolbar/change-frame-button.ts	12.50%	14 Missing ⚠️
...-block/widgets/element-toolbar/change-text-menu.ts	0.00%	9 Missing ⚠️
...k/edgeless/components/color-picker/color-picker.ts	0.00%	8 Missing ⚠️
...ot-block/edgeless/components/color-picker/utils.ts	12.50%	7 Missing ⚠️
...ck/edgeless/components/toolbar/shape/shape-menu.ts	0.00%	7 Missing ⚠️
...lock/widgets/element-toolbar/change-note-button.ts	53.84%	5 Missing and 1 partial ⚠️
...t-block/edgeless/components/color-picker/button.ts	50.00%	3 Missing ⚠️
... and 9 more

Additional details and impacted files

@@                              Coverage Diff                               @@
##           fundon/12_23_update_edgeless_color_palette    #9254      +/-   ##
==============================================================================
+ Coverage                                       49.91%   51.37%   +1.46%     
==============================================================================
  Files                                            2128     2159      +31     
  Lines                                           96871    97536     +665     
  Branches                                        16228    16317      +89     
==============================================================================
+ Hits                                            48355    50113    +1758     
+ Misses                                          47022    46036     -986     
+ Partials                                         1494     1387     -107     

Flag	Coverage Δ
server-test	78.19% <ø> (-0.06%)	⬇️
unittest	30.97% <40.38%> (+2.62%)	⬆️

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