Really, I could've just checked the battery state to know whether an USB
cable was plugged in...

(and I'm strongly hoping that it will continue like that too ;p)

Some spacer widgets are not required anymore because of the new
QTextEdit.

All's working! (Except maybe some layout shenaningans)

I still need to do some work, but it's ready to be merged into master.

Also, I fixed a dictionnary lookup issue where searching words in all
caps was impossible.

W-I-P.

QTimer implementation which triggers them when the battery reaches a
certain charging level