fix: inline_fragment silently returning only leading whitespace when the input starts with whitespace

[Stranger6667]

Resolves #692

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 91.58%. Comparing base (f589e34) to head (341733d).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #694      +/-   ##
==========================================
- Coverage   91.59%   91.58%   -0.01%     
==========================================
  Files          17       17              
  Lines        2533     2531       -2     
==========================================
- Hits         2320     2318       -2     
  Misses        213      213              

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

[codspeed-hq]

Merging this PR will not alter performance

✅ 12 untouched benchmarks

---

_{Comparing dd/fixnode-reparent (341733d) with master (f589e34)}