Add "unkown" to cast role if meta is missing

[candry7731]

Is your feature request related to a problem? Please describe.
Currently, if a cast member is missing role metadata then the secondary text is "as" then a blank

Describe the solution you'd like
Like to add the work "unknown" after the "as" if there is no role metadata

Additional context

Missing role data

Add "unknown" (just the text, not the background)

[cewert]

Maybe we should also move the "unknown"s to the end of the Cast & Crew list? Your screenshot shows a list of 19 people and the first 5 are missing a picture and don't have a known role. If possible, I think we should sort the list based on available metadata like picture and role.

[candry7731]

@cewert I like that Idea. I wonder how we could sort it?

[cewert]

I checked a few movies of mine and all the ones I checked were sorted just like the web client - with actors at the front of the list sorted by billing i think followed by directors etc.. So I'm thinking this is a fluke and your metadata is just messed up for that movie. What does the cast for that movie look like when you view it on the web client?

If I remember correctly brightscright arrays don't support sorting so we'd have to hack something together. It's totally possible but would be ugly and slow I think. Hopefully its just a metadata issue.