Check if we still need the pnpm overrides

[oliverschuerch]

For security reasons, we had to add some overrides in the root package.json.
These overrides got moved to the pnpm-workspace.yaml file with #8244.

We should check if we still need these overrides and remove them if possible.

• Check if we still need peerDependencyRules and clean them up.
• Check if we still need overrides and clean them up.

How can you check that?

1. Remove one specific package override and save the file.
   e.g. browserslist: '>04.27.0'
2. Run pnpm i
3. Run pnpm -r why <packagename>
4. Check if the package is installed in a version outside of the override boundaries (e.g. older than specified)
   if YES: keep override
   if NO: override can be removed