Branch list `-` char at the start of dialog

[saddy4]

If the user creates a branching list, adds a dialog as a result of a branch test, and the dialog starts with the character -, the dialog became a branch.

I think this happens because of how the parse handles the dialog in the branching list.

[le-doux]

thanks for the report saddy! :)

[le-doux]

still an issue - I will keep this around to look into this next time I work on the dialog tool :)

[le-doux]

potential fix: allow escaping "-" with a backslash "-"