- Created `tt_get_platform()` to use with more complex platform checks aside from the `ESP_PLATFORM` preprocessor directive
- Expand PC/sim memory to 256k so we can load the max amount of entries in Files without memory issues. I decided to skip the LVGL buffer entirely so it's easier to catch memory leaks.
- Simplified logic in `files_data.c`
- Implement statusbar as a proper widget
- Implement statusbar widget for wifi service
- Implement statusbar widget for sdcard mounting/unmounting
- Created Files app to browse PC and ESP32 files.
- Refactored toolbars so it's now a proper widget and allows for changing its properties from the app
- Toolbar now has extra action buttons
- Settings app now has a proper icon
- Minor cleanup in Desktop app
