Pull Request Description

This PR improves the bottom navigation bar logic by splitting up the gesture-related logic into its own widget ThunderBottomNavigationBar. The custom navigation bar now handles long-press, double-tap, and swipe gestures.

By implementing our own long-press detection logic, this PR also fixes a regression where long-pressing on the account tab would not trigger the profile modal to show up. We previously relied on some Flutter-specific logic (in particular, disabling the NavigationDestination's tooltip) to enable the long-press action to trigger. However, there was a regression in the behaviour in Flutter 3.41.x which caused the tooltip to render an empty string. This has been fixed upstream but has not yet made it to a release.

Issue Being Fixed

Issue Number: N/A

Screenshots / Recordings

Checklist

• If a new package was added, did you ensure it uses an appropriate license and is actively maintained?
• Did you use localized strings (and added appropriate descriptions) where applicable?
• Did you add semanticLabels where applicable for accessibility?