Remove window.location.hash parsing code

[ANAMASGARD]

Fixes #280

Problem

Old code in animint.js tries to parse all URL hash fragments as animint selector format (#variable={value}), but R Markdown creates simple anchors like #section-1 for headings. This causes JavaScript errors.

Changes

• Added failing test that detects the problematic code (this commit)
• Next commit will remove the untested hash parsing block (lines 2753-2799)

##Test

Status

• Test fails on current code (expected)
• Will pass after removing problematic code

[ANAMASGARD]

Sir @tdhock I found that test-renderer1-url-fragment.R tests the URL fragment feature.
Should we:=>

1. Remove this test along with the feature?
2. Or fix the hash parsing to only handle animint format (#var={value}) and ignore simple HTML anchors (#section-1)?

Please advise before I proceed.

[tdhock]

please remove test

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 73.06%. Comparing base (ddb3e1f) to head (33bee73).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #282      +/-   ##
==========================================
+ Coverage   72.77%   73.06%   +0.28%     
==========================================
  Files         164      164              
  Lines        8805     8758      -47     
==========================================
- Hits         6408     6399       -9     
+ Misses       2397     2359      -38     

Flag	Coverage Δ
javascript	80.75% <ø> (+1.03%)	⬆️
r	69.53% <ø> (ø)

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[tdhock]

also please add NEWS item

[tdhock]

thanks