eslint --fix is capable of fix it automatically for you, ensure prettier is run after eslint as eslint --fix could leave the code in an invalid prettier state.
Previously we were using `$elem.find(...).not($elem.find(...))`. This took approximately 2ms on my machine with a test post.
This commit switches to using a native querySelectorAll method, which takes less than 0.5ms on the same test post.
* DEV: Move `Discourse.getURL` and related functions to a module
* DEV: Remove `Discourse.getURL` and `Discourse.getURLWithCDN`
* FIX: `get-url` is required for server side code
* DEV: Deprecate `BaseUri` too.
