add a way of warning users that localised docs might be out of date

[gdams]

Description of change

I've been trying to come up with the best way to help keep localized documentation up to date. For now this seems like a good option that ties the localized document to a specific git sha of it's English counterpart. That way when an English doc is updated, the following warning bar will show to users on localized pages until someone from our localization effort is able to verify if the documentation needs changing.

Checklist

• npm test passes
• documentation is changed or added (if applicable)
• permission has been obtained to add new logo (if applicable)
• contribution guidelines followed here

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[gdams]

@xavierfacq I've run out of time to work on this one but feel free to take it over if you have time

[codecov]

Codecov Report

Merging #1504 (8dc81c5) into main (d9dc3c1) will increase coverage by 0.00%.
Report is 7 commits behind head on main.
The diff coverage is 100.00%.

❗ Current head 8dc81c5 differs from pull request most recent head 13174d2. Consider uploading reports for the commit 13174d2 to get more accurate results

@@           Coverage Diff           @@
##             main    #1504   +/-   ##
=======================================
  Coverage   99.19%   99.20%           
=======================================
  Files          87       87           
  Lines        6467     6504   +37     
  Branches      550      554    +4     
=======================================
+ Hits         6415     6452   +37     
  Misses         52       52           

Files Changed	Coverage Δ
src/templates/asciidocTemplate.tsx	100.00% <100.00%> (ø)

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[gdams]

Thinking out loud here, we should probably show a similar warning to users if they are being served an English document (because their locale doesn't exist) E.g encouraging users to translate the asciidoc document.

[xavierfacq]

I take a look at two points:

• Try to pass codecov
• Add similar warning to users seeing default English document

fixed