Use emojis for emotion markers instead of colors

[KSemenenko]

Summary

Use emojis rather than color-coding to denote emotions to avoid forcing the user to memorize color associations.

Source

• Category: Script Editing
• Feedback video: https://youtu.be/IeUoMyx7dKE?t=14m25s

Acceptance criteria

• Emotion markers can be understood without memorizing color-only semantics.
• The reader/editor treatment remains readable and accessible when emoji markers are present.
• Add or update browser/UI test coverage for the relevant user flow.
• Solution tests pass before the issue is marked ready for user verification.

[KSemenenko]

Implemented in commit 90b85a1.

Scope:

• Replaced color-only emotion indicators with emoji markers in editor menus, rendered editor preview, and teleprompter reader cards/words.
• Added shared emotion marker mapping and data attributes so marker semantics are inspectable without relying on color.
• Kept reader word emoji markers out of text-flow metrics so alignment and text-balance behavior remain stable.
• Added/updated unit and browser UI coverage for editor markup and cue-matrix reader emotion markers.

Verification:

• dotnet build ./PrompterOne.slnx -warnaserror --no-restore
• dotnet test @./tests/dotnet-test-progress.rsp --project ./tests/PrompterOne.Web.UITests.Reader/PrompterOne.Web.UITests.Reader.csproj -- --treenode-filter "///TeleprompterTextBalanceFlowTests/TeleprompterScreen_DefaultLeftAlignment_KeepsTextMassNearStageCenter"
• dotnet test @./tests/dotnet-test-progress.rsp --project ./tests/PrompterOne.Web.UITests.Reader/PrompterOne.Web.UITests.Reader.csproj -- --treenode-filter "///TeleprompterCueRenderingFlowTests/TeleprompterCueMatrix_CapturesReadmeExamplesForEveryCueFamily"
• dotnet test @./tests/dotnet-test-progress.rsp --solution ./PrompterOne.slnx: passed 1139/1139

Ready for review @byskyphy.

[byskyphy]

[byskyphy]

works in the editor and the prompter view

barely visible, but not a priority right now