docs(hrefs): update readthedocs hrefs

[ReenigneArcher]

Description

This PR updates hrefs to docs, mainly so they will continue to work with the doxygen version of the docs.

This PR should not be merged until right before the next stable release.

Additionally, directly before this is merged, we need to update a setting on readthedocs, to not put docs under an en subdirectory (also for the .github repo).

Screenshot

Issues Fixed or Closed

Type of Change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Dependency update (updates to dependencies)
• Documentation update (changes to documentation)
• Repository update (changes to repository files, e.g. .github/...)

Checklist

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have added or updated the in code docstring/documentation-blocks for new or existing methods/components

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 1 line in your changes missing coverage. Please review.

Project coverage is 10.30%. Comparing base (a7f6411) to head (77315f9).
Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
src/platform/linux/kmsgrab.cpp	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff            @@
##           master    #3476     +/-   ##
=========================================
  Coverage   10.30%   10.30%             
=========================================
  Files          90       90             
  Lines       16130    16130             
  Branches     7655     7655             
=========================================
  Hits         1662     1662             
+ Misses      13911    11918   -1993     
- Partials      557     2550   +1993     

Flag	Coverage Δ
Linux	9.68% <0.00%> (ø)
Windows	10.77% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
src/platform/linux/kmsgrab.cpp	3.51% <0.00%> (ø)

... and 33 files with indirect coverage changes

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud