[EGD-5966] Fix unit test build linker error

Problem was created by not extending `VisitorMock`
to mock new method of abstract `GuiVisitor`

[EGD-5948] Fix build pure image for all target

Currently image is generated as a separate rule, but we need
to build image for the all targets.

[EGD-5713] Change volume hardware buttons behaviour

The volume button policy has been redesigned to be less
ambiguous for the user.

[EGD-5941] Add tool to analyze stack usage

Add a script to determine a stack usage of code components.
The GENERATE_STACK_USAGE option must be used in the build configuration.

Signed-off-by: Marcin Smoczyński <smoczynski.marcin@gmail.com>

[EGD-5900] Fix filesystem performance issue (Linux)

Make fread/fwrite ignore requested item size
and perform on 8KB blocks

[EGD-5912] Add forget bluetooth device feature

Added button on AllDevices window, and handling for it.
Added needed messages for communication with service bluetooth.
Feature is now complete on application settings side.
Further integration in service bluetooth is needed.

[EGD-5899] Restore Quotes Windows

Due to mistakes probably during rebase
Quotes Windows weren't correctly merged by this PR:
https://github.com/mudita/MuditaOS/pull/1252

This PR fixes it.

[EGD-5789] Fix loudspeaker in-call logic

In some cases loudspeaker state night have not
been passed properly ignoring users choice.

[EGD-5698] Add pagination for messages

Add pagination for messages

[EGD-5765] Add BT docs

Added simple documentation about profile manager

[EGD-5860] Fix build packages

Merging and cleaning cmakes requred cleaning.

[EGD-5819] Fix count

Fix wrong "count" key word in contacts, and add test for variables in
device info endpoint.
Disabled test jira:
5906 - test_calendar_events.py
5907 - test_connection_security.py
5908 - test_dom_dump.py
5909 - test_usb_echo.py

[EGD-5877] Remove flash script update flasing doc

Remove old flashEMMC script and update flash documentation

Update doc/boot_and_update.md

Co-authored-by: Wojtek Cichoń <wojtek.cichon@protonmail.com>

Update doc/running_on_phone.md

Co-authored-by: Wojtek Cichoń <wojtek.cichon@protonmail.com>

Update doc/running_on_phone.md

Co-authored-by: Wojtek Cichoń <wojtek.cichon@protonmail.com>

Update doc/running_on_phone.md

Co-authored-by: Wojtek Cichoń <wojtek.cichon@protonmail.com>

Update doc/boot_and_update.md

Co-authored-by: Wojtek Cichoń <wojtek.cichon@protonmail.com>

Update doc/running_on_phone.md

Co-authored-by: Wojtek Cichoń <wojtek.cichon@protonmail.com>

[EGD-5861] Complete bluetooth connecting process on settings side

Enable connecting BT devices in settings.
Connect popup and add adjust messages for connection error handling.

[EGD-5489] Add Bluetooth pairing test

This PR provides a harness test of a current stage `Bluetooth` pairing
functionality. That is provided a `Bluetooth` device name, test logic:
* navigates to a appropriate window
* scans for devices available
* navigates over appropriate device and check's if it is focused

[EGD-5725] Sms threads pagination

Added pagination for sms threads

[EGD-5808] Introduce cache for Settings

Settings Cache introduced

[EGD-5660] Add PWM Cpu sentinel

Change of PWM frequency due
to main clock change in low
power operation.

[EGD-5757] Fix backup API

Fix backup endpoint to work with new paths and FS api
The flow is based on the design in confluence.

[EGD-5893] Disable optimization for os

Disable FreeRTOS optimization for RelWithDebInfo configuration in order
to be able to analyze system memory (heap and tasks' stacks).

Signed-off-by: Marcin Smoczyński <smoczynski.marcin@gmail.com>