Add input field on top of emojis

[thdelmas]

In order to go faster, it could be nice

When the emoji popup appears to have at the top of it an input bar

Either to search for the emoji, either to put directly emojis from a native keyboard A good option could be autocompletion and substitution of the emoji name by the emoji itself and then react to each of them

[thdelmas]

Input field as been added into the main view