clojure SDK - Convertion to new ADR and some improvements

[JeremS]

This PR mainly contains the changes for the new ADR:

• the public API functions have been renamed
• the remove-elements and the execute-script functionality is now sugar on top of patch-elements
• the hello world example and all the code snippets for the website are updated to the new names
• the SDK examples have also been updated to the new API

I used these changes as an opportunity to review some things:

• I moved the clj-kondo config to allows other lib to use the starfederation.datastar.clojure ns for their clj-kondo configs.
• I refactored the unit tests for the core API, they now should be easier to understand maintain and are more repl friendly

This is a draft PR at the moment, the smoke test could use the same treatment as the core unit tests. Also I haven't run them against a D* RC that uses the new ADR...