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Describe the feature

Inspired by #7096 (comment).

The problem

Today, when multiple LanguageMatcher's path_suffix match a file, one random language will be chosen (see language_registry.rs get_or_load_language function). While this simple setting works well for most of the cases, it's not robust enough. E.g. there's no way to distinguish .php or .blade.php.

Proposed fix

To make it simple, I propose changing the callback function so that it returns a tuple of boolean + max matched suffix length among all the suffixes. When there're multiple matches, the language with the longest suffix wins.

If applicable, add mockups / screenshots to help present your vision of the feature

No response