Default emoji should be none

Created by: ghost

After typing ":", the first emoji option should be none.

There are often times where I write the following, ending up with accidentally adding: :+1:

I am describing a list:

- List item one
- List item two
- etc

Will end up as:

I am describing a list:+1:

- List item one
- List item two
- etc

Just a nitpick, but it would alleviate some micro raging after having to type out long text describing things.