Move folder from gl to canvas

[kyasbal]

the folder contained utility used for canvas 2d not WebGL. Renamed it not to confuse readers

[gemini-code-assist]

Summary of Changes

Hello @kyasbal, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request refactors the project's directory structure by moving a set of utility files from a gl directory to a canvas directory. This change aims to improve code clarity and prevent confusion by accurately labeling the folder that contains utilities specifically designed for 2D canvas operations, rather than WebGL. The refactoring involves renaming the directory and updating all relevant import paths across the codebase to ensure functionality remains intact.

Highlights

• Folder Renaming: The web/src/app/timeline/components/gl folder has been renamed to web/src/app/timeline/components/canvas to better reflect its contents, which are utilities for 2D canvas rather than WebGL.
• File Relocation: All files previously located within the gl folder, including convertutil.ts, glcontextmanager.ts, rendering-loop-manager.ts, and their corresponding spec files, have been moved to the newly named canvas folder.
• Import Path Updates: References to the moved utility files have been updated in web/src/app/timeline/canvas/shared_gl_resource.ts and web/src/app/timeline/components/timeline-legend.component.ts to point to their new location under the canvas directory.

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[gemini-code-assist]

Code Review

This pull request aims to improve clarity by moving a folder with canvas 2D utilities from gl to canvas. While the intention is good, the execution has led to some inconsistencies. Moving convertutil.ts is appropriate, but moving WebGL-specific files like glcontextmanager.ts into the canvas directory is confusing and contradicts the stated purpose of the PR. I've left a more detailed comment with suggestions on how to better structure these components to improve clarity and maintainability.