Motivate command crashes with a comma

[Hd28br]

Command that caused the error

&motiv ,

Image that caused the error

No response

Steps to reproduce

1. Get any image
2. Run &motiv ,
3. Done

Self-hosted instance?

No

Error file

Message: text: no text to render


Stack Trace: undefined

Additional context

My fix ideas:

1. Add a way to render empty text
2. Block users from putting just a comma