refactor: Remove unused components and streamline route definitions

Commit notes

This commit deletes several unused components from the frontend, including GrooveIndicator, CreatorAnalytics, StorageDashboard, FilterBar, PacksPanel, SimpleUploadButton, TracksList, WaveformPlayer, PackManager, SampleTreeView, and various upload-related components. Additionally, it refactors the route definitions by removing obsolete routes and updating the route tree structure. This cleanup enhances maintainability and reduces the overall size of the codebase, streamlining the application structure.