Fix toolbar up section after w2ui rework

- remove fix height for toolbar-up
- this fix height will effect the bg-color in toolbar-up section
Signed-off-by: Darshan-upadhyay1110 <darshan.upadhyay@collabora.com>
Change-Id: I7b307a6a72968ed81fe2eb8663c430f11e3b3ced

browser/css/toolbar.css

@@ -1,6 +1,6 @@
 #toolbar-up {
 	z-index: 11;
-	height: 38px;
+	align-self: center;
 }
 
 #document-name-input-loading-bar {