DBusExplorer: Fix toolbar layout.

[EXAMPLES]
* BUG: DBusExplorer: Fix toolbar layout.

app/examples/Misc/DBusExplorer/.project

@@ -2,7 +2,7 @@
 Title=Gambas DBus Explorer
 Startup=FVersiongbXML
 Icon=dbus64.png
-Version=1.0.1
+Version=1.0.2
 Component=gb.image
 Component=gb.gui
 Component=gb.dbus
@@ -10,6 +10,7 @@ Component=gb.settings
 Component=gb.libxml
 Description="DBus explorer.\n\nThis example allows to explore all applications connected to both DBus system and application buses. You can see all exported interfaces, methods, properties and events, with their signature. But you cannot use them.\n\nUpdated to Correctly report property Names, Looks for Name attribute now \n     Was expecting to be first in List, but now randomly located\nUpdated to display Property direction read or read/write\nUpdated to correctly report full details of signal handling"
 Authors="Fabien Bodard\nBenoît Minisini"
+Environment="GB_GUI=gb.qt5"
 TabSize=2
 Translate=1
 Language=en_US

app/examples/Misc/DBusExplorer/.src/FVersiongbXML.form

@@ -26,20 +26,16 @@
       Expand = True
     }
     { HBox1 HBox
-      MoveScaled(46,0,44,4)
-      AutoResize = True
+      MoveScaled(47,0,46,4)
       Spacing = True
-      Margin = True
       { Label4 Label
         MoveScaled(0,0,9,4)
         Font = Font["Bold"]
-        AutoResize = True
         Text = ("Legend:")
       }
       { PictureBox1 PictureBox
         MoveScaled(8,0,3,4)
-        Picture = Picture["method.png"]
-        AutoResize = True
+        Picture = Picture.Load("method.png")
         Alignment = Align.Center
       }
       { Label1 Label
@@ -49,8 +45,7 @@
       }
       { PictureBox2 PictureBox
         MoveScaled(20,0,3,4)
-        Picture = Picture["property.png"]
-        AutoResize = True
+        Picture = Picture.Load("property.png")
         Alignment = Align.Center
       }
       { Label2 Label
@@ -60,8 +55,7 @@
       }
       { PictureBox3 PictureBox
         MoveScaled(34,0,3,4)
-        Picture = Picture["signal.png"]
-        AutoResize = True
+        Picture = Picture.Load("signal.png")
         Alignment = Align.Center
       }
       { Label3 Label