[CP-1962] Add Harmony color detection

* Added serial number based Harmony color
detection.
* Unified serial number handling for both
products.

[BH-1690] Add information about the connection to the PC

Added text with information about the connection to the main window
when the USB cable is connected to the PC

[CP-1966] Deleted file which is played does not stop the playback timer

Fixed the timer issue when file was deleted during playback.

[MOS-578] Fix misleading SMS notification text

Display "New message", translated accordingly - in
singular - in case there had been multiple unread
SMS messages and now only one remains unread.

[MOS-933] Added translations for Bluetooth connection status

Ditto

[MOS-000] Cleanup of translation files

Removed unused, duplicated entries
Sorted up jsons

[CP-1852] Too many user files removes default relaxation audio from the list

Changed order in which files in Relaxation are displayed
Added error message when files limit is exceeded

[MOS-636] Added MMI/USSD confirmation

USSD/MMI codes are now confirmed after they are sended.

[MOS-000] Fix duplicated Swedish translations

Remove redundant, duplicated Swedish translations
that have been found by translations checking
script.
Minor fix in Polish translation.

[BH-1654] Change polish meditation summary text

Use gender-neutral version

[MOS-966] Fix day of week abbreviations in Polish

Fixed issue with improperly created
weekdays abbreviations in Polish,
particularly 'Niedziela' (Sunday) that was
shortened to 'Nie', which also means 'No'
(negative response).
Fixed issue with remaining 'Edit' label
in navbar after leaving repetition field
in new alarm window.
Fixed hardcoded 'Custom' string used
as a repetition type text.

[MOS-939] Apply target update scripts

* Removed old UDM-related update scripts that are no longer needed.
* Applied target update script
* Removed unneeded data folder from user partition
* Removed dummy personalization.json

[BH-1639] Add welcome message with charging info

Add new bell welcome window
Add new close reasons
Add new actions
Bump assets version
Remove bold text from welcome message
Remove bold text from onboarding popups

[CP-1836] Lack of error handling for audio playback

Added error handling for incorrect audio formats and corrupted files inside Relaxation app

[MOS-874] Complement French translations

Additionally, deleted an unused translation item from
all languages.

[MOS-190] Add missing translations for EULA

Added missing EULA translations in Spanish.
Adjustment of the amount of share capital.

[CP-1831] Editing contact which is deleted via Center can still be saved but with incomplete data

Fix for editing contact when it was deleted via Center.
Edited contact cannot be saved if it was deleted earlier. Proper communication is shown.
Fix for phonebook app was not handling database notifications correctly.

[MOS-166] Unify grey color levels

Unified gray color levels used for texts
displayed in GUI.
Fixed issue with 'No calls yet.' text
not displaying.

[MOS-920] Fix incorrectly displayed Swedish texts in Onboarding

Fix of the issue that some of the Swedish
translations were incorrectly displayed
in Onboarding - some were misaligned
and some didn't display at all.

[MOS-190] Add missing translations for EULA

Added missing EULA translations in French and Swedish.