webadmin: fix volume labels in ja and fr locale

Increased the width of Gluster Volume column in events tab
to avoid striping the label in ja locale.

Increased the height of the create volume dialog to avoid
the text overflowing in fr locale.

Bug-Url: https://bugzilla.redhat.com/950302
Change-Id: I6c831be1d3339bc293e1af46b1af2ead5de8ab6c
Signed-off-by: Kanagaraj M <kmayilsa@redhat.com>