Element Renaming & Tab Renaming (#1534)

-In state machine diagram, if you delete the name in most elements it will also delete the text box in that element. So if you try and change the name after completely removing the text from the element, you have to add the text box back to the element.

-When renaming a tab, if you erase the whole name and hit enter, and then edit the name again, the text space will not expand as you write, and it will stay the size of one character.