feat: implement i18n file loader

[openscript]

No description provided.

[changeset-bot]

🦋 Changeset detected

Latest commit: 47953b4

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
astro-loader-i18n	Minor

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 98.10%. Comparing base (e557c2c) to head (47953b4).
⚠️ Report is 5 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #144      +/-   ##
==========================================
+ Coverage   98.04%   98.10%   +0.05%     
==========================================
  Files          15       17       +2     
  Lines         461      475      +14     
  Branches      110      112       +2     
==========================================
+ Hits          452      466      +14     
  Misses          9        9              

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