Add a search bar to search subreddits

[dulithadabare]

Is your feature request related to a problem? Please describe.
I would like to add a search bar to the subreddit view to search for subreddits.

Describe the solution you'd like
I would like add a search bar to filter default subreddits.

[kgellci]

Awesome! I would break this up into 3 separate features:

• Populate with default subreddits list (Add list of default subreddits #43)
• Add a search field which you can use to enter a custom subreddit and navigate to it
• Use some sort of search api from reddit to display results when typing into the search field

[dulithadabare]

Thanks. Shall I start working on populating with a list of default subreddits? (#43) ?

[dulithadabare]

I will start working on this

[dulithadabare]

Search bar added with some minor UI issues