Clean up "here" link anchors for docs, ee, and frontend dirs

[iansltx]

More work to fix #29720.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 64.23%. Comparing base (c8bd067) to head (ec41a25).
Report is 123 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #29742   +/-   ##
=======================================
  Coverage   64.23%   64.23%           
=======================================
  Files        1852     1852           
  Lines      180476   180501   +25     
  Branches     5248     5255    +7     
=======================================
+ Hits       115926   115944   +18     
- Misses      55436    55443    +7     
  Partials     9114     9114           

Flag	Coverage Δ
frontend	53.93% <ø> (-0.04%)	⬇️

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[iansltx]

Rebased this to be independent of #29731. Will add a 3rd PR for performing the same fixes on articles.

[iansltx]

@rachaelshaw @mostlikelee @georgekarrv I think I need approvals from all three of y'all to merge this.

[noahtalerman]

@rachaelshaw changes look good to me! Please feel free to give your CODEOWNER approval.

(FYI I'm reviewing for Rachael to give Rachael some time back for drafting.)

[iansltx]

@lukeheath Need your +1 once more here due to changes made since your review. Looks like we're good to go at that point. Thx!

[lukeheath]

🙌