Fixed textarea, not refactored, not appplied to other templates than text-top
Added disabling of button at the end of slide creation to avoid multiple submissions
Issue #8480 by tuj: Changed text input in slide creations to textareas. Changed preview template textareas to pre. Added autoGrow directive to textareas to make sure they have correct size.
Merge branch 'development' of github.com:Indholdskanalen/indholdskanalen into development
Merge branch 'development' into feature/textarea-fix
Merge branch 'feature/textarea-fix' into development