Merge develop into main branch (#137)

* SdCard HAL refactored (#135)

- Refactor SdCard HAL
- introduce Lockable

* Screenshot and FatFS improvements (#136)

- Fix screenshots on ESP32
- Improve Screenshot service
- Convert Screenshot app to class-based instead of structs
- Screenshot app now automatically updates when task is finished
- Enable FatFS long filename support

* Re-use common log messages (#138)

For consistency and binary size reduction

* Toolbar spinner should get margin to the right

* More TactilityC features (#139)

* Rewrote Loader

- Simplified Loader by removing custom threa
- Created DispatcherThread
- Move auto-starting apps to Boot app
- Fixed Dispatcher bug where it could get stuck not processing new
messages

* Hide AP settings if the AP is not saved

* Missing from previous commit

* Replace LV_EVENT_CLICKED with LV_EVENT_SHORT_CLICKED

* Refactored files app and created InputDialog (#140)

- Changed Files app so that it has a View and State
- Files app now allows for long-pressing on files to perform actions
- Files app now has rename and delete actions
- Created InputDialog app
- Improved AlertDialog app layout

Documentation/ideas.md

@@ -1,6 +1,5 @@
 # Bugs
 - I2C Scanner is on M5Stack devices is broken
-- Fix screenshot app on ESP32: it currently blocks when allocating memory (its cmakelists.txt also needs a fix, see TODO in there)
 - WiFi bug: when pressing disconnect while between `WIFI_EVENT_STA_START` and `IP_EVENT_STA_GOT_IP`, then auto-connect becomes active again.
 - ESP32 (CYD) memory issues (or any device without PSRAM):
   - Boot app doesn't show logo 
@@ -10,22 +9,21 @@
   - When no PSRAM is available, use simplified desktop buttons
   - Add statusbar icon for memory pressure.
   - Show error in WiFi screen (e.g. AlertDialog when SPI is not enabled and available memory is below a certain amount)
-- WiFi details "forget" button should be hidden when WiFi credentials are not stores yet.
+- Clean up static_cast when casting to base class.
 
 # TODOs
+- Call tt::lvgl::isSyncSet after HAL init and show error (and crash?) when it is not set.
 - Create different partitions files for different ESP flash size targets (N4, N8, N16, N32)
-- Rewrite `sdcard` HAL to class
 - Attach ELF data to wrapper app (as app data) (check that app state is "running"!) so you can run more than 1 external apps at a time.
   We'll need to keep track of all manifest instances, so that the wrapper can look up the relevant manifest for the relevant callbacks.
 - T-Deck: Clear screen before turning on blacklight
 - Audio player app
 - Audio recording app
-- Files app: file operations: rename, delete, copy, paste (long press?), create folder
 - T-Deck: Use knob for UI selection
 - Logging to disk/etc.
 - Crash monitoring: Keep track of which system phase the app crashed in (e.g. which app in which state)
 - AppContext's onResult should pass the app id (or launch request id!) that was started, so we can differentiate between multiple types of apps being launched
-- Loader: Use main dispatcher instead of Thread, and move API to `tt::app::`
+- Loader: Use main dispatcher instead of Thread
 - Create more unit tests for `tactility-core` and `tactility` (PC-only for now)
 - Show a warning screen if firmware encryption or secure boot are off when saving WiFi credentials.
 - Show a warning screen when a user plugs in the SD card on a device that only supports mounting at boot.
@@ -43,6 +41,10 @@
 - Make firmwares available via web serial website
 - If present, use LED to show boot/wifi status
 - T-Deck Power: capacity estimation uses linear voltage curve, but it should use some sort of battery discharge curve.
+- Statusbar widget to show how much memory is in use?
+- Wrapper for Slider that shows "+" and "-" buttons, and also the value in a label.
+- Display app: Add toggle to display performance measurement overlay (consider showing FPS in statusbar!)
+- Files app: copy/paste actions
  
 # App Ideas
 - USB implementation to make device act as mass storage device.