add new integration Free Mobile SMS

[William-De71]

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.
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• 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

Add new integration to send SMS via the Free Mobile API

[relativeci]

#2890 Bundle Size — 10.4MiB (+0.65%).

33aabde(current) vs 8fff0ca master#2883(baseline)

Warning

Bundle contains 3 duplicate packages – View duplicate packages

Bundle metrics   5 changes 1 regression

	Current #2890	Baseline #2883
Initial JS	5.64MiB(+0.31%)	5.62MiB
Initial CSS	304.89KiB	304.89KiB
Cache Invalidation	54.95%	57.81%
Chunks	51	51
Assets	173(+0.58%)	172
Modules	1511(+0.27%)	1507
Duplicate Modules	21	21
Duplicate Code	0.83%(-1.19%)	0.84%
Packages	124	124
Duplicate Packages	3	3

Bundle size by type   3 changes 3 regressions

	Current #2890	Baseline #2883
JS	7.43MiB (+0.24%)	7.41MiB
IMG	2.54MiB (+1.99%)	2.49MiB
CSS	321.68KiB	321.68KiB
Fonts	93.55KiB	93.55KiB
Other	17.79KiB (+0.51%)	17.7KiB
HTML	13.58KiB	13.58KiB

Bundle analysis report Branch William-De71:new-integration-fre... Project dashboard

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 98.53%. Comparing base (8fff0ca) to head (33aabde).

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #2157   +/-   ##
=======================================
  Coverage   98.53%   98.53%           
=======================================
  Files         875      876    +1     
  Lines       14386    14410   +24     
=======================================
+ Hits        14175    14199   +24     
  Misses        211      211           

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• Flaky Tests Detection - Detect and resolve failed and flaky tests
• JS Bundle Analysis - Avoid shipping oversized bundles

[Pierre-Gilles]

Just a small feedback, otherwise it looks good to me!
Can you write a documentation so the link is working?

[Pierre-Gilles]

Missing a placeholder, it looks a bit empty:

[William-De71]

It will be less empty now.