Add a movable first-person mode similar to Minecraft

**Description:** Add a mode to first person where you can swipe the screen to move the camera, just like in minecraft. This can be accessed by dragging a first-person icon to the action bar, and then tapping on it until you reach the movable camera. _(image attached)_ But don't make it return to the starting position like the unused and slow movable first-person camera. Instead, let the front of the blockster move in respect with the camera. _(video attached in .mov format but it's also in the discord)_

**Benefits:** With an easy-to-control first-person camera, making games in first person could be a lot easier to make, less annoying in games, more fun to play, and players could further expand creativity with first-person in their worlds.

**Attatchments**

https://github.com/fortellgames/bw_bugtracker/assets/173324690/e8212080-db7e-4d5a-b41f-1466f92fc4ea


No files, tests, or code entry points are named. Start by locating the existing first-person camera and action-bar mode handling, then trace how camera swipes and block orientation are applied. Done means a draggable first-person icon enables a camera that moves by swiping without returning to its starting position, while the block front follows the camera.

Written by the indexing model from the issue text.