docker: Introduce helper for better labeling in Query Monitor

[oskosk]

Due to the paths used in the monorepo, it is not trivial for Query Monitor to infer the type and name of the files being monitored.

This PR adds a new plugin that helps Query Monitor with labeling components better

Before	After

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Before
After

Fixes #

Proposed changes:

• Introduces new mu-plugin hooking into some filter from the Query Monitor plugin
• Makes it so files in the monorepo are correctly identified as plugins or packages

Other information:

• Have you written new tests for your changes, if applicable?
• Have you checked the E2E test CI results, and verified that your changes do not break them?
• Have you tested your changes on WordPress.com, if applicable (if so, you'll see a generated comment below with a script to run)?

Jetpack product discussion

Does this pull request change what data or activity we track or use?

Testing instructions:

• Go to '..'
• Install Query Monitor in you docker environment
• Open Query Monitor settings
• Confirm you see the Plugin: jetpack as a component in the database queries panel

[github-actions]

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[jeherve]

Nice improvement, thank you! It tests well for me, should be good to merge.

Of note, I pushed a commit to address some linting errors, but I made no actual functionality changes.

[oskosk]

thank you!