Temporarily added more options in key binding dialog. But still need to implement binding after camera story has been merged into develop

tags: #story[1273]

src/main/resources/css/Master.css

@@ -51,6 +51,11 @@
 
 /********* customised scroll bar for scroll pane ***********/
 
+.scroll-pane {
+    -fx-focus-traversable: false;
+    -fx-border-style: none;
+}
+
 /* The main scrollbar **track** CSS class  */
 .scroll-bar:horizontal .track,
 .scroll-bar:vertical .track {

src/main/resources/css/dialogs/KeyBindingDialog.css

@@ -9,8 +9,13 @@
 }
 
 #closeLabel:hover {
-    -fx-text-fill: -fx-pp-theme-color;
-    -fx-font-size: 33;
+    -fx-text-fill: red;
+    -fx-font-size: 33px;
+}
+
+.sectionLabel {
+    -fx-text-fill: -fx-pp-dark-text-color;
+    -fx-font-size: 20px;
 }
 
 JFXButton {