[Fix] add space between "Stash" and "IDs" on studio panels

[mmenanno]

After https://github.com/stashapp/stash/pull/2810 merged I realized that I missed in my first pass that there should be a space her in both the part I added and where I copied the logic from to match how it is displayed on the scene page and be in a format that a user would actually expect to read it in.

How it looks fixed:

[DogmaDragon]

Might be just me but I prefer it without space.

Also, Performers also don't have a space, but Scenes do.

[AdultSun]

I agree, "StashID" makes more sense to me. Feels more like a proper noun that way and always looked intentional to me.

[mmenanno]

Moved to draft, I'll switch this PR to change the scene page to make things uniform as per https://discord.com/channels/559159668438728723/798641040029777980/1016868829470670910

[WithoutPants]

Closing as stale.