Merge develop into main (#167)

- WiFi Connect app is now hidden by default, but accessible at the bottom of the WiFi Manage app when WiFi is turned on.
- WiFi service now turns on WiFi when calling connect() and WiFi is not on.
- Removed `blocking` option for `service::loader::startApp()`. This feature was unused and complex.
- Various apps: Moved private headers into Private/ folder.
- Various apps: created start() function for easy starting.
- Added documentation to all TactilityC APIs
- Refactored various `enum` into `class enum`
- Refactor M5Stack `initBoot()` (but VBus is still 0V for some reason)

Tactility/Source/app/files/Files.cpp

@@ -1,6 +1,8 @@
-#include "Files.h"
+#include "app/files/FilesPrivate.h"
+
 #include "app/AppContext.h"
 #include "Assets.h"
+#include "service/loader/Loader.h"
 
 #include <memory>
 
@@ -37,4 +39,8 @@ extern const AppManifest manifest = {
     .onResult = onResult
 };
 
+void start() {
+    service::loader::startApp(manifest.id);
+}
+
 } // namespace