add files-toolbar min width, auto overflow
add files-toolbar min width, auto overflow

NebulousLabs/Sia-UI,NebulousLabs/New-Sia-UI,rivine/rivine-UI,rivine/rivine-UI,NebulousLabs/New-Sia-UI,NebulousLabs/New-Sia-UI,rivine/rivine-UI,NebulousLabs/Sia-UI,NebulousLabs/Sia-UI