Bug: iOS keyboard cannot be dismissed after text prompt

[adriancostin6]

When using a variable of type text

what: text
is: text
this: text

I get it displayed fine in the prompt (when it does not crash the Joplin app miserably, but that is detailed in #166). After I am done inserting the text, I cannot close the keyboard to move further. Tried hitting ENTER, but it does nothing.

Steps to repro:

1. Create a template containing text variables
2. Create note from template
3. Select template
4. Insert text
5. You should be stuck with no way of dismissing the keyboard
6. Tap a random spot outside of the prompt
7. Error pops up