[Bug] Empty space triggers request for token search bar on Request, Swap and Import token screens

[SamuelSalas]

Describe the bug

When entering an empty space on the clear token search bar, a request will be generated to search for a token. In particularly in the import token screen, the request is generated when you hide the keyboard.

Expected behavior

A request should not be trigger when entering a blank space to the clear token search bar.

Screenshots/Recordings

Private Zenhub Video

Steps to reproduce

1. Tap on the Import Token on Etherium Main Network
2. Tap on Search Tokens bar
3. Tap the space bar key on the phone keyboard