Auto suggest/ auto complete is not working on mobile for search and while creating topics

[faizanzahid]

Just like we have auto suggest working on mobile for tags, can we please enable auto suggest for following?

1. when searching for topics on mobile using global search.
2. when writing a topic title
3. when choosing a category for a topic

all these autosuggest work on desktop view but not in mobile view.

@PitaJ @baris