* FIX: Wizard improvements post-merge part 1
Followup 3135f472e2c4221a9348aec27514d3e2947bc9ab
Fixes the following:
* On mobile, the Styling step was very narrow
* When clicking Next on the Styling step after previously
selecting Hot, we got an error
Also makes the following UX improvements for the preview:
* Use different topic titles for Latest and Hot
* Also make Hot view and reply numbers higher
This helps differentiate the two previews.
* DEV: Review fixes