New version button disabled: add UI feedback

:heart: Thank you for your contribution!

The popup tooltip on the disabled "New version" button was not shown since disabled buttons do not trigger hover events.
- -> Fixed by adding an extra <span> element around the button.
- Remark: the span is always included, even when the button is enabled.

new-version

Extra changes:

new-version-centered

Reworded the tooltip to explain more in details the reason for the new versions to be disabled (as suggested in https://github.com/zenodo/ops/issues/336)
- ~~Remark: I did not include a final dot . in the sentence (it seems that we sometimes do and sometimes don't).~~
- _Remark: The JavaScript translations have not been updated for 2 years, and running npm run extract_messages generates many differences, so I did not update the translations, even though the previous wording had some existing translations in another repository._

Ticks in all boxes and 🟢 on all GitHub actions status checks are required to merge:

[x] I'm aware of the code of conduct.
[x] I've created logical separate commits and followed the commit message format.
[x] I've added relevant test cases.
[x] I've added relevant documentation.
[x] I've marked translation strings (for relevant code).
[x] I've followed the CSS/JS and React guidelines (for relevant code).
[x] I've followed the web accessibility guidelines (for relevant code).
[x] I've followed the user interface guidelines (for relevant code).
[x] I've identified the copyright holder(s) and updated copyright headers for touched files (>15 lines contributions).
[x] I've NOT included third-party code (copy/pasted source code or new dependencies).

Third-party code

Reminder

By using GitHub, you have already agreed to the GitHub’s Terms of Service including that:

You license your contribution under the same terms as the current repository’s license.
You agree that you have the right to license your contribution under the current repository’s license.

inveniosoftware / invenio-rdm-records