* Adds Tiptap Toolbar Menu extension kind
a reusable menu component.
Removes the `unique` property for menu-items.
* Implements Font Family as toolbar menu kind
* Implements Font Size as toolbar menu kind
* Implements Style Select as toolbar menu kind
* Implements Table as toolbar menu kind
* Markup amends
* Mock data RTE content addition
* "TextDirection" manifest correction
* Text Align: made to be toggleable
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