code clean up

* smmdb api query is not started anymore on closing the smmdb window
* general code clean up

bin/application/MainWindows.css

@@ -16,16 +16,14 @@
  * TREE TABLE CSS
  */
 
-
 .tree-table-view {
-    -fx-tree-table-color: rgba(0, 168, 204, 0.2);
+	-fx-tree-table-color: rgba(0, 168, 204, 0.2);
     -fx-tree-table-rippler-color: rgba(0, 168, 204, 0.4);
 }
 
-
 .tree-table-view:focused .tree-table-row-cell:selected {
     -fx-background-color: -fx-tree-table-color;
-	-fx-table-cell-border-color: -fx-tree-table-color;
+    -fx-table-cell-border-color: -fx-tree-table-color;
     -fx-text-fill: BLACK;
 }
 
@@ -33,13 +31,10 @@
     -fx-text-fill: BLACK;
 }
 
-
 .tree-table-view .jfx-rippler {
 	-jfx-rippler-fill: -fx-tree-table-rippler-color;
 }
 
-
-
 .tree-table-view .column-header,
 .tree-table-view .column-header-background,
 .tree-table-view .column-header-background .filler {