Adapt input text window to the inserted phrase length

[le22didbe]

When inserting a long phrase in source/target language, input window's size remains fixed, not showing full inserted phrase. Window's size should adapt to text length.

[FredericoAndrade]

Quick solution: https://github.com/andreypopp/react-textarea-autosize

[AmrAdelKhalil]

I don't think that making source/target language input not fixed will be something useful, Instead if we make inserting new phrase input window not fixed will be much better.