Issue #14782: Add LITERAL_DEFAULT token support in RightCurlyCheck

[vivek-0509]

Fix false-negative for LITERAL_DEFAULT token in RightCurlyCheck

Issue #14782:

• Add LITERAL_DEFAULT token support in RightCurlyCheck
• Add LITERAL_DEFAULT to Google style configuration (google_checks.xml)
• Update documentation, examples, and xdoc templates to include LITERAL_DEFAULT
• Remove #14782 false-negative reference from google_style.xml coverage page

Diff Regression config: https://gist.githubusercontent.com/vivek-0509/de0e36db6f5b68a6a617acbe7e5312ea/raw/ffbe0df1852c6a3038a056c0134c108a7e431611/base_config.xml

Diff Regression patch config: https://gist.githubusercontent.com/vivek-0509/d0238b505bbd2e8c3eaf35291cb96ca8/raw/1e96218808d7e4166f1fcb77eb7364cd5a29f726/patch_config.xml

[vivek-0509]

GitHub, generate website

[vivek-0509]

GitHub, generate report

[github-actions]

https://checkstyle-diff-reports.s3.us-east-2.amazonaws.com/51e3b59_20260226125321/index.html

https://checkstyle-diff-reports.s3.us-east-2.amazonaws.com/51e3b59_20260226125321/checks/blocks/rightcurly.html#Description

https://checkstyle-diff-reports.s3.us-east-2.amazonaws.com/51e3b59_20260226125321/google_style.html#Coverage_table

[github-actions]

https://checkstyle-diff-reports.s3.us-east-2.amazonaws.com/51e3b59_2026134651/reports/diff/index.html

[vivek-0509]

@romani I have reviewed the diff report all the violations are genuine