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

Tactility/Source/SystemEvents.cpp

@@ -1,10 +1,11 @@
+#include <Tactility/CoreDefines.h>
+#include <Tactility/Mutex.h>
 #include <Tactility/SystemEvents.h>
 
-#include <Tactility/Mutex.h>
 #include <tactility/check.h>
 #include <tactility/log.h>
+#include <tactility/time.h>
 
-#include <Tactility/CoreDefines.h>
 #include <list>
 
 namespace tt::kernel {