Docs: Add google tag manager

[louismaximepiton]

Description

• Added the cookies management using TarteAuCitron
• Added the custom scripts and custom CSS
• Added a page in the doc to handle the cookies once the first interaction is made.
• Generated the hash using https://www.srihash.org/

What needs to be reviewed at least

• [x] The Cookies panel is visible (make sure to not use Firefox)
• [x] Make sure the cookies are fine
• [x] The Panel can be accessed from somewhere inside the website
• [x] Define what to put inside the Cookies page
• [x] Make sure the changes in main.html aren't breaking
• [x] Make sure there no reference to ods-android

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[pylapp]

Apart from the formatting of docs/_includes/tarteaucitron.html, this PR LGTM! Good job @louismaximepiton. The content is the same as the one validated in ODS Android. I let the maintainers give you more info about the CI error with GitLeaks which seems to be a configuration error (upstream or maybe to do in your fork 🤷)

Indeed I defined a GItleaks action so as to look for secrets leaks in PR and repository. This feature is absed on a licence for organisations like ours. It seems the check is run in the fork side, not ours, that is the reason why it failed because of missing license.

After code review, nothing found, LGTM.

For text time, you should create a dedicated issue to as to trace these contributions.