Fixed data loss when creating or editing a note/contact after connecting
the USB cable and selecting the option to enable tetering in the popup window
that appears. Now, when the user wants to enable tethering, they will be asked
if they want to exit without saving.
Fix of minor corner case bug in previous
implementation - pressing left functional
button when selecting input mode would
display empty options menu even if note
and clipboard were empty.
Additionally fixed the same bug for
'Save' button.
1. Prepare Pure and Bell specific `Application`
classes and add them to `app` target:
- `products/BellHybrid/apps/Application.cpp`
- `products/PurePhone/apps/Application.cpp`
2. Update `CMakeLists.txt` files.
3. Move `ApplicationBell` implementation to Bell-specific
`Application` class and remove `ApplicationBell` files.
4. Change Bell apps parent classes from `ApplicationBell`
to Bell-specific `Application` class.
5. Rename `Application` to `ApplicationCommon` in the rest of the files.
