fix: favorite button on sidebar with new palette

[mcasimir]

Fix for favorite pill color.

TLDR; is still not working as before but is not as broken.

Here we disable the dynamic background color on the favorite pill in the sidebar. The reason for doing that are:

• Color codes were not translated to the new palette and a "light gray" background is displayed in that case
• The new palette of colors for favorite is not meant to be used as a background as is not creating enough contrast with the foreground. For a similar reason we moved it to an external indicator also in the connection screen.
• The sidebar redesign removes the favorite pill.

Before:

After: