Description:

create a minecraft item that has the following description: 'This item allows for the creation and access of a pocket dimension. Each player will only get a single Pocket Dimension. When the item is used by a player for the first time, you should generate a pocket dimension by creating a 50 x 50 x 50 hollow cube at the world border. The cube is made of unbreakable blocks, and the player is not allowed to leave it. After it is generated, the player can teleport to it at any time by using the pocket dimension tool. The tool will also save the last location the player was at when using the tool to enter the dimension, so they can use the tool again to return to wherever they were when they entered the dimension. The player should be able to interact however they want while in the cube, like placing or breaking blocks inside of it, but they must not be allowed to leave the cube. '