Converge linting styles for core, docs, and plugins

[lizschwab]

Check for duplicates

• I have searched for similar issues before opening a new one.

Problem

We need to ensure our linting styles are consistent across core and plugins and they need to be built in a way that external contributors can update them.

Request

• Converge linting/styles, and write it so that external contributors can help.
• Decide whether to make core stricter or plugins less strict.

Alternatives considered

No response

Additional context

No response