Create API methods for manipulating with block elements

[Darginec05]

This PR about:

• Creating getElement, createElement, deleteElement
• Simplifying API for manipulating with block elements
• Create @yoopta/accordion package
• Create event listener on block level

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Name	Status	Preview	Comments	Updated (UTC)
yoopta-editor	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Jun 5, 2024 4:29pm

[maZahaca]

In overall I think we can easily split this PR to smaller chunks (worth in future):

1. api changes
2. new plugin