Fix #779 fixed bottom dashboard edition bar

[atrovato]

Pull Request check-list

To ensure your Pull Request can be accepted as fast as possible, make sure to review and check all of these items:

• [ ] If your changes affects code, did your write the tests?
• Are tests passing? (npm test on both front/server)
• Is the linter passing? (npm run eslint on both front/server)
• Did you run prettier? (npm run prettier on both front/server)
• [ ] If you are adding a new features/services, did you run integration comparator? (npm run compare-translations on front)
• [ ] If your changes modify the API (REST or Node.js), did you modify the API documentation? (Documentation is based on comments in code)
• [ ] If you are adding a new features/services which needs explanation, did you modify the user documentation? See the GitHub repo and the website.
• [ ] Did you add fake requests data for the demo mode (front/src/config/demo.json) so that the demo website is working without a backend? (if needed) See https://demo.gladysassistant.com.

NOTE: these things are not required to open a PR and can be done afterwards / while the PR is open.

Description of change

Proposal for #779
Keep Save/Cancel buttons accessible on dashboard edition.

[codecov]

Codecov Report

Merging #783 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #783   +/-   ##
=======================================
  Coverage   92.38%   92.38%           
=======================================
  Files         419      419           
  Lines        5427     5427           
=======================================
  Hits         5014     5014           
  Misses        413      413           

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 7be18f8...0829a4d. Read the comment docs.

[Pierre-Gilles]

Thanks for the PR! It's really better indeed.

Just one issue, on mobile, the button is a little too much on the right:

[atrovato]

Should be fixed now :)

[Pierre-Gilles]

Thanks !! 🙏