Bug: Page breaks due to toWords crash when check amount is blank or otherwise not a number

[AySz88]

Repro: Delete the dollar amount of the check, leaving the field blank. The function toWords crashes as "Not a Finite Number". The entire check preview and form disappear as a result, making it impossible to correct and resume without reloading and losing existing progress.

Experienced on the demo.

My suggestion: Leave both the amount and amount-in-words line blank when this occurs, including removing the squiggle. If this is considered dangerous (as it creates a "blank check") fill it with zero or "VOID" instead.

[sktzofrenic]

Should be fixed in 1.1