[MOS-59] Change tethering text to icon in status bar

Changed text to icon, fixed behaviour with phone modes

[MOS-59] Fix weird behaviour of indicators on popups

Fixed phone mode indicators on popups

[CP-1624] Cover new fields in contact and message endpoints with tests

Cover new fields for holding numberID in contact and message endpoint
response to keep the integrity and test passing.

Revert "[MOS-578] Fix incorrect logic with SMS notifications"

This reverts commit de99e12e000c89088a6d9e79cac3cf2d2e73a90c.

[MOS-000] Update commit checks

Increased max line length to 100 chars, allowed
auto revert commits to pass CI checks

[MOS-28] Change alarm sounds and ringtones preview behavior

Change of the behavior of alarm sounds
and ringtones preview, so that it matches
with the design.

Additionally fixed lack of ringtones list
looping.

[MOS-38] Fix window redirection when clicking on the SMS icon

After clicking the message icon on the "contact details" screen,
the user will be redirected to either the message thread
with that person or to the new message screen (only if thread
does not exist yet / or has been deleted in the past)

[MOS-879] Fixed misleding SMS flow

Fixed misleading SMS flow after sending error.
When modem was rebooting attempt to send SMS was causing
Rejected by no sim popup, which was misleading for user.

[MOS-854] Fix crash with USB logs enabled

Fix of the issue that phone would freeze/crash
with USB logs enabled, which was caused by
logging from inside critical section.

[MOS-357] Broken navigation around contact adding

From now on, after cancelling or confirming a new contact
creation initiated from the call log, the phone goes back
to correct windows.

[MOS-205] Unneeded fs notify events

Fixed problem with fs notification events
being sent one time too many.

[CP-1822] Fix space returned by DeviceInfo endpoint

Unify the space values returned by DeviceInfo
endpoint by taking into account space taken
by second system partition, which was previously
omitted.

[MOS-903] Remove reboot to USB MSC mode

Remove mechanics enabling to perform reboot
to MSC mode by sending request to one of the
endpoints via serial port, as it is not
implemented in bootloader and may potentially
be unsafe.

[MOS-199] Change unknown char glyph to match with design

Fix of the issue that glyph displayed as
a substitute for unsupported character
was different than the design suggested.

Additionally minor code cleanup.

[MOS-663] Replacement for empty templates screen

Now there's information displayed that there are no
templates and in order to add some, the user needs
to use Mudita Center. Also, given no templates, the
screen doesn't show the 'USE' button.

[MOS-902] Fix crash when entering message thread

Fix of the issue that entering messages
and trying to send SMS without SIM card
inserted (and in a few another cases
when sending resulted in failure)
phone would crash.

[MOS-237] Removed unnecessary workaround for system reboot

Removed workaround for rebooting into recovery (update)

[MOS-892] Fixed MTP/FS integration issues

Fixed regression introduced by MOS-544.

[MOS-530] Various calculator app fixes

* Fixed issue with subtract operation triggering unusal behavior.
* Unified handling of the add,sub,mul,div operations.
* Updated and verified existing unit tests and added new ones covering
unhandled cases.
* Added basic requirements/readme.

[CP-1624] Adding numberID as a field to contact and message response

Changing the way Center is recognizing the threads in the message
window by introducing the numberID