Merge remote-tracking branch 'origin/stable'

[CP-670] Fix crash dump creation on HF

Fix the crash dump on the disk partition
when phone firmware Hard Fault CM7 core
error.

Signed-off-by: Lucjan Bryndza <lucjan.bryndza@mudita.com>

[BH-1142] Fix exit from library volume view

Allow exiting the volume settings view with back or light click

[BH-1117] Bell audio service

Added Bell audio service
Added volume scaling.

[BH-1025] Fix timer callbacks in switches

Make queue calls from timer callbacks non "FromISR"

[BH-1025] Fix deep and light click interaction

[BH-1025] Light click no longer occures after deep click
[BH-1113] Light click works shortly after deep click

[BH-1133] Fix UI lags due to lowered frequency

Added CPU frequency hold on timer while user is
interacting with device

[BH-1135] Fix meditation app double bell

Prevent progress timer from triggering finish
and interval callbacks at once

[BH-1148] Fix front light intensity

Scale front light intensity to possible
illumination values

Merge remote-tracking branch 'origin/stable'

[BH-1153] Fix snoonze duration after alarm

Set snoonze duration after alarm with second level precision

[BH-1158] Fix alarm duration

Set default alarm ring duration at 5 minutes

[BH-1146] Fix deep press crash

Fix deep press crash outside homescreen

[EGD-7938] Update CONTRIBUTING.md

Updated CONTRIBUTING.md to include `Luts.bin`.

[EGD-7938] Updated CONTRIBUTING.md

Added info about luts.bin

[CP-815] Incorrect handling of versions during restore

Fixed comparison of OS and backup file versions

[BH-1128] Fix return from alarm popups

Prevent going back to previous alarm popup window

[EGD-7732] Fixed audio poor quality

Fixed audio poor quality during a loudspeaker call.

[EGD-7915] Revert "[EDG-7533] Limit MTP supported files"

This reverts commit 17eaf4f9b7abb4c7ddeeff62b8d6323935debb35 in
usb_stack subrepo.

[EGD-7925] Disable cross-product test on release branches

This disables builds of Pure tests on Bell release branch and vice versa