Added Terminal Feature

a built-in terminal that slides up from the bottom of the screen is exactly like VSCode.

Now when I Press Ctrl + \ on your keyboard.A sleek terminal will instantly slide up from the bottom of my screen, ready to type git commands, run servers, or compile code.

If you press Ctrl + \ again, it will hide away but keep whatever process you started running in the background!

Hit Esc (or type jk fast) to exit terminal insert mode.