[WIP] Create ImageMap component in Blazor

[Copilot]

✅ Implementation Complete: ImageMap Component

Summary

Successfully implemented the ImageMap component that enables interactive images with clickable regions (hot spots) that can navigate to URLs or trigger server-side events. This component helps developers migrate ASP.NET Web Forms ImageMap controls to Blazor with minimal code changes.

Component Implementation ✅

• Created HotSpotMode enum (Navigate, PostBack, Inactive, NotSet)
• Created base HotSpot class with shared properties
• Created three HotSpot types: RectangleHotSpot, CircleHotSpot, PolygonHotSpot
• Created ImageMapEventArgs for Click events
• Implemented ImageMap component with proper HTML rendering
• Renders standard HTML img with usemap + map with area elements
• Used thread-safe counter for unique map IDs
• Proper async Task event handlers
• Correct mode inheritance logic (HotSpots inherit ImageMap mode when not explicitly set)

Testing ✅

• Created comprehensive test suite with 23 tests
• Tests cover all HotSpot types (Rectangle, Circle, Polygon)
• Tests cover all modes (Navigate, PostBack, Inactive)
• Tests cover mixed scenarios and component properties
• All 23 ImageMap tests passing
• All 655 solution tests passing (no regressions)

Documentation ✅

• Created detailed ImageMap.md documentation
• Includes Web Forms vs Blazor syntax comparisons
• Includes practical examples for common scenarios
• Updated mkdocs.yml navigation
• Updated README.md with documentation link
• Updated status.md: 18/27 Editor Controls complete (67%), 39/53 total (74%)

Code Quality ✅

• Addressed all code review feedback
• No compilation errors or warnings introduced
• Follows project conventions and patterns
• Comprehensive XML documentation
• Clean, maintainable code

Ready for Merge

This PR is complete and ready for final review and merge.

Original prompt

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This section details on the original issue you should resolve

<issue_title>Create the ImageMap component</issue_title>
<issue_description>We need to create the ImageMap component in Blazor to mimic the original Web Forms control</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes Create the ImageMap component #336

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