Adjust css to give toc sidebar more room

[timkpaine]

No description provided.

[github-actions]

Test Results

2 tests  ±0   2 ✅ ±0   8s ⏱️ -1s
1 suites ±0   0 💤 ±0 
1 files   ±0   0 ❌ ±0 

Results for commit fab1103. ± Comparison against base commit 6cd817c.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 76.42%. Comparing base (6cd817c) to head (fab1103).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #72   +/-   ##
=======================================
  Coverage   76.42%   76.42%           
=======================================
  Files           5        5           
  Lines         123      123           
  Branches       21       21           
=======================================
  Hits           94       94           
  Misses         19       19           
  Partials       10       10           

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