Add descriptive labels to hackathon icon buttons

[Akshith-cdr]

Description

Fixes #3442

Added descriptive accessible labels to Hackathon page icon buttons and controls, including whiteboard tools, color and brush selectors, undo/clear actions, sticky note deletion, team workspace delete/unpin/close actions, and lifecycle action buttons.

Also added a regression test to prevent generic aria-label="button" values and title-only Hackathon buttons from returning.

Type of change

• Bug fix (non-breaking change which fixes an issue)

Screenshots / Video (if applicable)

N/A

Checklist

• My code follows the style guidelines of this project
• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have run local unit tests using npm test and verified they pass
• I have run npm run lint and resolved any new errors or warnings
• I have verified responsiveness and visual alignment on desktop and mobile viewports

Test run:

• node tests\hackathonIconButtonLabels.test.mjs

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Project	Deployment	Actions	Updated (UTC)
eventra	Error		Jun 1, 2026 6:48pm