[Frontend] Cleanups to Inspector config elements

open #729
In-progress!
Markup and CSS mods continued;
Config params added to PlotOptionsForm.js to
allow control-first layout per form row;
Changed titles of Inspector parts;

platform/commonUI/general/res/sass/_inspector.scss

@@ -86,7 +86,11 @@
                 .form-row {
                     @include align-items(center);
                     border: none;
-                    padding: 0;
+                    padding: $interiorMarginSm 0;
+                    input[type='text'],
+                    input[type='search'] {
+                        width: 100%;
+                    }
                 }
             }
         }