Comprehensive Bundle Rework to Bridge Early- and Mid-game

Bundles should be used to encourage exploration while lessening the punishment that Minecraft's continued item additions deals to players doing said exploration. To this end, a complete rework is required to reward desired play. To retain early-game progression, maintain balance, and aid the inventory issue, bundles should operate on these simple rules: 1.) They can carry up to 64 items. 2.) This includes any item, even unstackable. 3.) Exceptions to rule 2 are items tied to progression, such as armor, tools, and other inventories (bundles, shulkers). With those simple rules as a foundation, we can add more complex rules as bundle mechanics: 4.) The bundle gui is a companion to the inventory gui with entries for each item type stored. You can open the bundle gui in the inventory by right clicking it. Doing so in the hotbar will open the inventory and bundle gui together. The bundle gui will manifest as a scrollable bar separate from the inventory gui. 5.) To take out or put in, left click for a single item, right click for a stack. No dragging. A player can left click to take out or put in a single item into the bundle, and right click to perform this for whole stacks. For example, if I had put in 24 poppies into my bundle, I could right click that entry in the bundle gui to instantly take out all 24. For unstackables, this would function differently. Unstackables will fill empty inventory slots until they are filled, then throwing the excess from players onto the ground.