add extra filters

Author: neroist

examples/text_editor/src/text_editor.nim

@@ -17,6 +17,7 @@ proc main =
     di.title = "Text Editor"
     di.filters = @[
       (name: "Text files", ext: "*.txt"),
+      (name: "Nim source files", ext: "*.nim;*.nims;*.nimble;*.nimf;nim.cfg;nimdoc.cfg"),
       (name: "Any file", ext: "*")
     ]
 
@@ -38,7 +39,7 @@ proc main =
 
     exit()
 
-  window.show("ui/MainWindow.html")
+  window.show("ui/MainWindow.html", FireFox)
 
   wait()