[EGD-4429] Enable DEBUG_MODEM_OUTPUT_RESPONSE to true

All those logs are crucial for identification of modem issues.
All modem debug logs are disabled in runtime by default.

[EGD-4429] Fix gui issues in application call

Fix the persistent answer and reject labels in Call Window issue
Fix the wrong call duration issue in both Call and Calls apps
Fix the not working call ignoring issue

[EGD-4925] Change new filesystem handling implementation in module-gui. (#1193)

Due to vfs deprecation there is need to remove all vfs calls from code. This PR covers module gui. There are some modifications in other modules included which are necessary because of build system issues.

[EGD-3442] Fix list empty window unhandled behaviours, in place rebuild handling, notes rebuild on note deletion and changed call Icon name to stateIcon. (#1160)

Merge branch 'master' into stable

[EGD-4150] Change filename i18 to i18n (#1108)

Change filename of internationalization files from i18 to i18n.

I18n should stand for internationalization, not i18. That's why I changed in 'module-utils' name of the folder 'i18' and both .cpp and .hpp files to 'i18n'.

[EGD-4153] Use actions instead explicit applications switch. (#1032)

[EGD-4217] Convert service-db to library

[EGD-4366] Global data cleanup. (#999)

[EGD-4216] Convert service-cellular to library

[EGD-4301] Bluetooth Audio profile support (#984)

 - implemented audio sink/source switching
 - reorganized / renamed sound events
 - moved SetBluetoothStreamData and AudioDevice instance to base Operation class
 - added audio profiles RecordingBluetoothHSP, RoutingBluetoothHSP
 - removed unused audio Profiles
 - removed redundant OutputPath and InputPath classes from CodecParamsMAX98090

[EGD-4214] Convert service audio to library

[EGD-4200] Message handling refactored. (#974)

[EGD-4288] refactor global data (#959)

Reduce firmware size by refactoring global data defined in public
headers.

Each global variable which require runtime initialization adds
initialization code to every translation unit which includes the header
where the variable is defined and declared.

[EGD-4213] Convert service-appmgr to library - library (#960)

[EGD-4151] Application manager actions introduced. (#905)

* [EGD-4151] Application manifest structure defined.
* [EGD-4156] Applications registry and basic action handler implemented.

[EGD-4205] mudita 1st audio assets (#940)

[EGD-4169] Fix call timer (#908)

[EGD-4051] Based application manager app switching on application stack. (#858)

* [EGD-4051] Based application manager app switching on application stack.

* [EGD-4051] Application manager thorough refactor.

[EGD-2628] Create Add device windows (#867)

[EGD-2628][WIP] Attach Add Device window

[EGD-2628] Fix passing scanned bt devices to Add device window

[EGD-2628] Add bt icon and adjust botton bar of Add device window

[EGD-2628] Add all devices window, & some fixes for add device window

[EGD-2628] Update changelog & cleanup

[EGD-2628] Improve bluetooth main window