fix(biome_diagnostics): fix JetBrains relative file URLs should be clickable when given line and column numbers

[Andrew-Chen-Wang]

Summary

Fixes #4874

Jetbrains IDEs for relative file paths aren't clickable in diagnostics output. In webstorm, it requires prepending at (notice the whitespaces)

This does not fix the case where no line numbers and column numbers are displayed for relative paths. See test cases

Test Plan

The environment variable can be found here:

• comment: Set the TERMINAL_EMULATOR environment variable JetBrains/jediterm#253 (comment)
• permalink: https://github.com/JetBrains/intellij-community/blob/5ca79d879617e9cc82f61590b8d157d6a4ad8746/plugins/terminal/src/org/jetbrains/plugins/terminal/runner/LocalOptionsConfigurer.java#L94

Test cases display:

• the environment variable
• a test where my relative path in my app was caught with a lint error but nothing was highlighted
• this PR only resolves relative file paths with column numbers and/or line numbers
• separate variant with only a line number
• test case that the absolute path case does work, regardless if there's a line number or not

- This is in PyCharm. Some devs develop across IDEs, and here it does work

[ematipico]

Sorry, I wasn't clear enough. The link should be in the code, as a comment.

The PR gets lost, but the code stays :)

[Andrew-Chen-Wang]

updated @ematipico thanks for the review