[WIP] Remove history tab and route description from views

[Copilot]

Thanks for asking me to work on this. I will get started on it and keep this PR's description up to date as I form a plan and make progress.

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This section details on the original issue you should resolve

<issue_title>Authenticated User Experience (src/App.tsx, src/components/RownativeRouteImport.tsx)</issue_title>
<issue_description>AUTH-1: Remove the History view and tab Remove the "History" nav tab from the sidebar, the currentView === 'history' rendering block in

, the workoutHistory state array, and the FIT export button. Completed session data no longer needs to be displayed in-app (it can be exported externally at a later date if needed).

AUTH-2: Remove the route description from the route details panel Remove the route-description paragraph from the route info overlay on the routes view and from the activity-route-summary overlay on the workout view. Remove the corresponding btn-toggle-description toggle buttons on both views (routes view and workout/activity view), along with the isRouteDescriptionExpanded state and its callbacks.
</issue_description>

• Closes Authenticated User Experience (src/App.tsx, src/components/RownativeRouteImport.tsx) #182

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