[Bug] Fix edit screen submit UX bug

[Yorkshireman]

• Edit word but don't tap tick on keyboard
• Edit categories in some way

If you then click Cancel you get taken back to the Word screen without the word text change being saved. The word only gets saved if you tap the tick button while editing the word.

Also:

• If you tap tick on keyboard while editing a word, you get taken back to the Word screen (with word change saved) - this might be annoying for users who haven't finished editing everything.

Possible solutions:

• Don't cause form submit when tapping tick?
• Provide a save button instead