Added a 'close' button to module menubar, justified on the right

(looks better)

Author: BrunoLevy

lib/main_window.lua

@@ -223,6 +223,13 @@ function graphite_main_window.draw_module(module)
 	    if with_menubar then
 	       if imgui.BeginMenuBar() then
 	          module.draw_menu()
+                  local btn_width  = autogui.button_size
+                  imgui.Dummy(imgui.GetContentRegionAvail()-btn_width,2)
+                  if imgui.SimpleButton(
+                      imgui.font_icon('window-close')..'##close'
+                  ) then
+                      module.visible = false
+                  end
 	          imgui.EndMenuBar()
 	       end
 	    end

lib/text_editor.lua

@@ -506,13 +506,6 @@ end
 
 function text_editor_gui.draw_window()
    text_editor_gui.parse_errors()
-   if imgui.SimpleButton(
-      imgui.font_icon('window-close')..'##close'
-   ) then
-      text_editor_gui.visible = false
-   end
-   autogui.tooltip('Hide editor')
-   imgui.SameLine()
    if imgui.SimpleButton(
       imgui.font_icon('circle-play')
    ) then