feat(WIP): add docs for Lit with Tanstack forms usage

[tobySolutions]

This Pull request contains work for the documentation of the lit integration with Tanstack forms. The checklist of tasks are:

• - Rewrite Quickstart to aid users better and be more straightforward.
• - Write Arrays docs for guides.
• [] - Write basic-concepts docs for guides.
• [] - Write linked-fields docs for guides
• [] - Write ui-libraries docs for guides.
• [] - Write validation docs for guides.
• [] - Write async-initial-values for guides.

[tobySolutions]

Back here!!! Let's do this!!