Bigger inventory in compatible manner

This is not your standard inventory bigger plea. I have a background in minecraft commands and data packs, and also love survival, so here is my perspective:

recently, a picture went viral of how many slots would exist if the inventory scaled proportionally to the amount of items added. Adding more slots is I believe a big part of aolving the inventory management issue.

I propose unifying the inventory proper, and the hotbar. This means 6 rows with 9 slots, like a double chest. The existing infrastructure in the code, as seen in command like `/item`, has all 54 slots of a double chest accessable, but in commands, NBT has the inventory unified from slot 0 to 35, and the command format from hotbar.0-8 and inventory.0-26 (though idk how this is on bedrock) This should be inventory.0-53.

54 slots for the inventory and unifying the format makes for a seemless update experience for survivalists, and mod-makers, and brings us a step closer to a modern inventory.