Added support for setting the theme mode for Linkus Web Client.
By default, the Linkus Web Client automatically follows the theme
setting of your web browser. You can also manually switch the system theme
to Light Mode or Dark Mode according to your preference.
Optimized call experience: The call window displays the caller ID of the
other participant(s) and allows you to conveniently copy it by either of the
following methods:
Click to Copy: Click the button beside the number to copy
it.
Select & Copy: Select the number and use keyboard
shortcut to copy it.
Fixed the video conference issue: All video feeds appeared mirrored in the
conference.
PBX Dependency: Version 37.21.0.117 or later
