[Frontend] Add fake table element

DISCLAIMER: with the table collection element feature, I'm trying to follow the https://stacking.dev/ principles (Pointed out by @peter_baserow) to figure out what are the benefits and what are the drawbacks of such method in Baserow. As consequence, you'll see a lot of small MRs and may be sometimes it will break a bit the usual patterns we use in Baserow.

What is in this MR

The is the frontend part of the add table collection element. This MR just add the table collection element with a fake table that has no relation with the data. You can choose a data source among those which are collections but that's all.

How to test this MR

• Add a table collection element.
• Select a data source in the general tab.
• Check that the style match the (neutral) design
• move the element, duplicate it, duplicate the full application, ...

Merge Request Checklist

• changelog.md has been updated if required.
• New/updated Premium/Enterprise features are separated correctly in the premium or enterprise folder
• The latest Chrome and Firefox have been used to test any new frontend features
• Documentation has been updated
• Quality Standards are met
• Performance: tables are still fast with 100k+ rows, 100+ field tables
• The redoc API pages have been updated for any REST API changes
• Our custom API docs are updated for changes to endpoints accessed via api tokens
• The UI/UX has been updated following UI Style Guide

Related to #1836 (closed)