Fix missing scrollbars on a couple of pages

Hopefully this is the last of these changes. All pages have scrollbars. No double scrollbars, except for the OSD page, if the screen is smaller than the OSD preview.

src/css/main.css

@@ -1016,7 +1016,7 @@ li.active .ic_mag {
     /*  (port picker 105px, log CLOSED 25px, status bar: 20px + padding) - was: calc(100% - 171px)*/
     background-color: white;
     overflow-x: hidden;
-    overflow-y: hidden;
+    overflow-y: auto;
     border: 0 solid #848484;
     -webkit-transform: rotateX(0deg); /* DO NOT REMOVE! this fixes the UI freezing bug on MAC OS X */
     transition: all 0.3s;