Small update after feedback

Hello!

Made following small changes after receiving additional helpful and valuable feedback from KarlGG and A. Durakin (many thanks guys!)

1. the cursor is no longer locked to the center of the screen but can be moved freely now, using "confined" as lockstate now, when pressing escape to open the menu to select the levels you can use your cursor to select the levels now because of the fix
2. when pausing the game the liquids stopped showing up in the magic potion bottles after unpausing the game. This is because to pause the game I set the timescale to 0. Since the liquid shader I use also uses time this became affected too. The shader now uses Unscaled.deltatime for the time.
3. the projectiles you can fire now have a maximum lifetime of 5 seconds. Previously they were only set to destroy when colliding with certain objects but this could cause laggy gameplay if you had numerous projectiles in scene.
4. ramps and stairs are climable now, climbing/sliding down still needs much improvement

KNOWN Issues (updated):

- camera needs to be more sensitive when moving mouse (first level) - pyramid and stairs/others not climable (not implemented yet) - when pressing the 'S' key to walk backwards, the player spins out of control (all levels) - no 'win' or 'level finished' condition implemented yet, need to press "Escape" to open the menu
- player can be pushed off the map (desert map) also there's no kill box so player keeps falling through
- currently the left shift key raises the shield, while a more standard/expected behaviour would be for the player character to sprint
- more camera tuning needed, at the moment the camera rotates when the user uses the arrow or wasd keys to move the character, camera should become mouse/right stick controlled
- after climbing the stairs of the Mayan Pyramid you fall down a bit, getting stuck. You can't traverse the pyramid downwards in a good expected way
- jumping is quite weak, needs to be improved, made more useful