feat: add ignoreComment options in indent

[yeonjuan]

Checklist

• Addresses an existing open issue: fixes Html comments are checked for indentation #444

Description

[Copilot]

Pull Request Overview

This PR adds a new ignoreCommentContent option to the indent rule, allowing developers to skip indentation checking for HTML comment content. This is useful when free-form indentation inside HTML comments is desired.

• Added ignoreCommentContent boolean option (default: false) to control whether comment content indentation is checked
• Updated the indent checking logic to skip CommentContent nodes when the option is enabled
• Added test cases covering both enabled and disabled states of the new option

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

File	Description
packages/eslint-plugin/lib/rules/indent/indent.js	Implements the ignoreCommentContent option by adding early returns in CommentContent and CommentContent:exit handlers
packages/eslint-plugin/tests/rules/indent.test.js	Adds test cases for valid (ignoreCommentContent: true) and invalid (ignoreCommentContent: false) scenarios
docs/rules/indent.md	Documents the new ignoreCommentContent option and its behavior

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 98.56%. Comparing base (9f998c4) to head (18f5cea).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #445   +/-   ##
=======================================
  Coverage   98.56%   98.56%           
=======================================
  Files          84       84           
  Lines        2788     2791    +3     
  Branches      777      778    +1     
=======================================
+ Hits         2748     2751    +3     
  Misses         40       40           

Flag	Coverage Δ
unittest	98.56% <100.00%> (+<0.01%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
packages/eslint-plugin/lib/rules/indent/indent.js	99.44% <100.00%> (+<0.01%)	⬆️

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