Title screen: move language button to icon

data/gui/widget/button_25x25.cfg

@@ -260,6 +260,14 @@
 	()
 }
 
+{_GUI_DEFINITION
+	"action_language"
+	"Button for displaying the language menu."
+	"buttons/button_square/button_square_25"
+	"icons/action/language_25"
+	()
+}
+
 {_GUI_DEFINITION
 	"left_arrow_short_ornate"
 	"Left arrow action button."

data/gui/window/title_screen.cfg

@@ -254,7 +254,6 @@ where
 			{_GUI_BUTTON "load" _"Load" _"Load a saved game"}
 			{_GUI_BUTTON "addons" _"Add-ons" _"Download usermade campaigns, eras, or map packs"}
 			{_GUI_BUTTON "editor" _"Map Editor" _"Start the map editor"}
-			{_GUI_BUTTON "language" _"Language" _"Change the language"}
 			{_GUI_BUTTON "preferences" _"Preferences" _"Configure the game’s settings"}
 			{_GUI_BUTTON "credits" _"Credits" _"View the credits"}
 			{_GUI_BUTTON "quit" _"Quit" _"Quit the game"}
@@ -447,7 +446,7 @@ where
 			[row]
 
 				[column]
-					horizontal_alignment = "left"
+					horizontal_grow = true
 					vertical_alignment = "bottom"
 
 					[grid]
@@ -456,6 +455,7 @@ where
 
 							[column]
 								grow_factor = 0
+								horizontal_alignment = "left"
 								[button]
 									id = "about"
 									definition = "action_about"
@@ -465,6 +465,7 @@ where
 
 							[column]
 								grow_factor = 1
+								horizontal_alignment = "left"
 								border = "left"
 								border_size = 5
 								[label]
@@ -473,6 +474,16 @@ where
 								[/label]
 							[/column]
 
+							[column]
+								grow_factor = 0
+								horizontal_alignment = "right"
+								[button]
+									id = "language"
+									definition = "action_language"
+									tooltip = _ "Change the language"
+								[/button]
+							[/column]
+
 						[/row]
 
 					[/grid]