feat(ux): shorter button labels to improve readability in certain languages

[Jerome-Herbinet]

⚠️ Important : not tested (no test environment)

Current problem in French (many other languages may have the same issue) :

• buttons are very large
• some texts are truncated (ellipsis)

French, currently	French after this PR

Same problem as 62880

I suggest using only action verbs (one word per button) so that the information is clear and easy to read, and so that the interface isn't cluttered with buttons that are too large.

Concerns simple and full editor.

[SebastianKrupinski]

/backport to stable6.5

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

📢 Thoughts on this report? Let us know!

[github-actions]

Hello there,
Thank you so much for taking the time and effort to create a pull request to our Nextcloud project.

We hope that the review process is going smooth and is helpful for you. We want to ensure your pull request is reviewed to your satisfaction. If you have a moment, our community management team would very much appreciate your feedback on your experience with this PR review process.

Your feedback is valuable to us as we continuously strive to improve our community developer experience. Please take a moment to complete our short survey by clicking on the following link: https://cloud.nextcloud.com/apps/forms/s/i9Ago4EQRZ7TWxjfmeEpPkf6

Thank you for contributing to Nextcloud and we hope to hear from you soon!

(If you believe you should not receive this message, you can add yourself to the blocklist.)