[BH-2104] Create What's New database using migration mechanism

Create What's New mechanism using migration mechanism. This is
a first part of a fix for What's New not working if trying to
update from 2.9.0, 2.9.1 or 2.9.2.

[BH-2079] Fix outdated forum link

Fix of the issue that link to
Mudita Forum displayed at the
end of What's New would lead
to 404 page.

[BH-2068] Remove pre-1.9.0 What's New entries

Removed pre-1.9.0 entries from What's New
database, as they will never be shown
anyway.

[BH-2068] Update What's New database

Added 2.9.0-related entries to
What's New database.

[BH-2065] Fix race condition between CMake targets

* Fix for the issue that resulted in race
condition between target creating and
populating databases and the one copying
created databases to required directories.

The issue was caused by lack of dependency
between those targets, what allowed CMake
engine to parallelize them. As a result,
databases were copied before their creation
has been finished, what resulted in weird
discrepancies in databases content and
occasional rsync errors.

* Removed unused multicomp_install
function.

* Refactored DB tests readContent
helper.

[BH-2056] Add bedside lamp settings

Added possibility to customize
brightness and activity time
of bedside lamp functionality.

[BH-2031] Add relaxation fade option in settings

It adds a new option in settings menu that
configures the fade effect in the relaxation app.

[BH-1476] Add greetings in all languages

Random greetings after turning off the alarm will be available in all
languages.

[BH-1988][BH-1990] Add What's New database and translations

* Added database with What's New entries.
* Added translations to What's New app.
* Updated image assets version to the
one containing What's New icons.
* Design fixes.
* Minor issues fixes.

[BH-1989][BH-1990] Core functionality of What's New app

Implemented core functionality of What's New
application.

[BH-2005] Add volume setting for focus timer

The user will be able to control the volume of notifications in the
Focus Timer application

[BH-1945] Add update instructions at the end of onboarding

User will see instructions on updating Harmony's OS at the end of
onboarding.

[BH-1955] Fix incorrect Polish conjugation in Focus Timer

Fixed incorrect conjugation of word
"minuta" on Focus Timer summary
screen.

[BH-1941] Add translations for Focus timer app

Added a translations for new texts in Focus timer application.

[BH-1901] Add long breaks to focus timer application

The user can set the duration and frequency of the long break in the
settings.

[BH-1899] Add low battery screen before starting focus session

If the battery is discharged below 10%, the user gets a
notification before starting the focus session.

[BH-1900] Add focus time, repeats and short break time to settings

The user will be able to set the time and number of repetitions for the
focus session and the time of a short break in the Focus Timer
application

[BH-1922] Add a Summary screen to Focuse timer

Added a summary screen that tells the user how much time they spent in focus.
This screen is displayed after the last focus time.

[BH-1905] Add Focus timer application to the menu list

Creating a new application "Focus Timer" and adding it to the main menu
list

[BH-1919] Add 'Menu' label to apps list

* Added 'Menu' top label to the
list of Harmony apps.
* Minor cleanup.