feat: improve translation check

[scottdover]

Summary
This makes a few change to how we check for translations:

• It splits this into a distinct workflow that is ran on a push to main (instead of checking for every pull request action)
• It also adds a workflow_dispatch trigger such that we can manually run this check with any branch
• It updates the output to only list the files that need to be updated for translations. See the two examples below

Example with no translations needed:

Example with translations needed:

Testing

• Made sure github actions passed
• Temporarily added this branch to the translation check
• Will test workflow_dispatch on main (workflow_dispatch triggers have to be in the default branch before they can be triggered via actions)

[scnwwu]

Looks great to me!