Make the feedback icon be the right color in dark theme

[robintown]

Our feedback.svg is not tintable. Rather than mess with it I think it makes sense to use the equivalent Compound icon.

Before	After

[t3chguy]

https://docs.google.com/spreadsheets/d/1nYbTWwG3TPnh70LX5looxpCiWuLhW0TYEZFIxVjYALY/edit?gid=2146012360#gid=2146012360 asks for this icon to be ChatProblem instead but will accept for now and query after given it is similar to the old icon

[RiotRobot]

The backport to staging failed:

The process '/usr/bin/git' failed with exit code 1

To backport manually, run these commands in your terminal:

# Fetch latest updates from GitHub
git fetch
# Create a new working tree
git worktree add .worktrees/backport-staging staging
# Navigate to the new working tree
cd .worktrees/backport-staging
# Create a new branch
git switch --create backport-31527-to-staging
# Cherry-pick the merged commit of this pull request and resolve the conflicts
git cherry-pick -x --mainline 1 179cf0f8e17ee0d284b88e72946f2ef2b25e8514
# Push it to GitHub
git push --set-upstream origin backport-31527-to-staging
# Go back to the original working tree
cd ../..
# Delete the working tree
git worktree remove .worktrees/backport-staging

Then, create a pull request where the base branch is staging and the compare/head branch is backport-31527-to-staging.

[t3chguy]

Doesn't affect the RC