Editors with the same name override eachother's availableBlocks

[Tofandel]

Description

When making a BlockEditor::make() with ->blocks() or ->excludedBlocks() if any other editor (eg one in a block on in the form, or two from different blocks) on the page has the same name, then the available blocks of both blocks are the same (one overrode the available blocks of the other)

Steps to reproduce

Create a few different blocks with nesting using

BlockEditor::make()
            ->name('description')->label(twillTrans('Description'))
            ->withoutSeparator()
            ->excludeBlocks(['text']);

BlockEditor::make()
            ->name('description')->label(twillTrans('Description'))
            ->withoutSeparator()
            ->excludeBlocks(['image']);

When you add one of this blocks into the other block, the nested block will show the wrong available blocks

This is due to this line which only uses the name of the block editor as a key

twill/views/partials/form/_block_editor.blade.php

Line 11 in df08d1a

window['{{ config('twill.js_namespace') }}'].STORE.form.availableBlocks['{{ $name }}'] =