Use --text-color-deemphasized rather than --panel-description-color

In the cirucit panel we used --panel-description-color, but this has been replaced in bugzilla bug 1833160.

added UX FF115-esr labels

added 12.5 stable label

added Backlog label

added Desktop label

added Task label

added 13.0 stable label

removed 12.5 stable label

marked this issue as related to tor-browser-build#40927 (closed)

mentioned in merge request !738 (merged)

removed Backlog label

added Doing label

assigned to @richard

closed

mentioned in issue #41974 (closed)

marked this issue as related to tor-browser-build#40965 (closed)