Improvements and fixes (#595)

- Fix BluetoothSettings app not updating when toggling on Bluetooth on
- Fix BluetoothSettings app crash when closing while scanning
- Fix BluetoothSettings app crash when turning BT off while scanning
- WebServer doesn't save config anymore as a side-effect of reading the config
- Add missing license headers
- Use TactilityKernel's time and delay functions instead of TactilityFreeRtos ones

Modules/lvgl-module/include/lvgl/icons/launcher.h

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: Apache-2.0
 #pragma once
 
 #define LVGL_ICON_LAUNCHER_APPS "\xEE\x97\x83"

Modules/lvgl-module/include/lvgl/icons/shared.h

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: Apache-2.0
 #pragma once
 
 #define LVGL_ICON_SHARED_ADD "\xEE\x85\x85"

Modules/lvgl-module/include/lvgl/icons/statusbar.h

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: Apache-2.0
 #pragma once
 
 #define LVGL_ICON_STATUSBAR_LOCATION_ON "\xEF\x87\x9B"