Add consistent shadow to dialog buttons

Author: Kristan Kenney

web/css/styles.min.css

@@ -2830,6 +2830,11 @@ td.hint {
 }
 .ftp-path-prefix { padding-top: 12px; font-size: 0.8rem; color: #555; }
 
+.ui-dialog .ui-dialog-buttonpane button {
+  box-shadow: 0px 1px 4px rgba(0,0,0,0.2),
+  inset 0px 0px 1px #fff,
+  inset 0px 0px 3px rgba(255,255,255,0.5) !important;
+}
 
 .ui-button, .button {
   filter:chroma(color=#000);