MQTT : Add custom topic for device features

[Pierre-Gilles]

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)
• Did you test this pull request in real life? With real devices? If this development is a big feature or a new service, we recommend that you provide a Docker image to the community (french forum/english forum) for testing before merging.
• 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.js) 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

[cloudflare-workers-and-pages]

Deploying gladys-plus with    Cloudflare Pages

Latest commit:	f822ec6
Status:	✅  Deploy successful!
Preview URL:	https://48571fa5.gladys-plus.pages.dev
Branch Preview URL:	https://mqtt-custom-topic.gladys-plus.pages.dev

View logs

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 98.39%. Comparing base (c28b59e) to head (f822ec6).
Report is 4 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2066      +/-   ##
==========================================
+ Coverage   98.38%   98.39%   +0.01%     
==========================================
  Files         850      854       +4     
  Lines       13890    13984      +94     
==========================================
+ Hits        13666    13760      +94     
  Misses        224      224              

☔ View full report in Codecov by Sentry.
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[relativeci]

#2541 Bundle Size — 10.12MiB (+0.17%).

f822ec6(current) vs 3bd6128 master#2540(baseline)

Warning

Bundle contains 3 duplicate packages – View duplicate packages

Bundle metrics   3 changes 1 regression

	Current #2541	Baseline #2540
Initial JS	5.44MiB(+0.31%)	5.43MiB
Initial CSS	302.96KiB	302.96KiB
Cache Invalidation	53.58%	0%
Chunks	51	51
Assets	170	170
Modules	1479(+0.07%)	1478
Duplicate Modules	21	21
Duplicate Code	0.82%	0.82%
Packages	124	124
Duplicate Packages	3	3

Bundle size by type   1 change 1 regression

	Current #2541	Baseline #2540
JS	7.22MiB (+0.24%)	7.21MiB
IMG	2.46MiB	2.46MiB
CSS	319.75KiB	319.75KiB
Fonts	93.55KiB	93.55KiB
Other	17.53KiB	17.53KiB
HTML	13.58KiB	13.58KiB

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Bundle analysis report Branch mqtt-custom-topic Project dashboard