Refactor translation files

- Add prefixes to all message keys to provide context
- Use messages with attributes for some UI elements (dropdowns, dialogs, checkboxes, menus)
- Rename some class fields for consistency with translation keys

OpenRA.Mods.Common/Widgets/Logic/Settings/InputSettingsLogic.cs

@@ -18,37 +18,37 @@ namespace OpenRA.Mods.Common.Widgets.Logic
 	public class InputSettingsLogic : ChromeLogic
 	{
 		[TranslationReference]
-		const string Classic = "classic";
+		const string Classic = "options-control-scheme.classic";
 
 		[TranslationReference]
-		const string Modern = "modern";
+		const string Modern = "options-control-scheme.modern";
 
 		[TranslationReference]
-		const string Disabled = "disabled";
+		const string Disabled = "options-mouse-scroll-type.disabled";
 
 		[TranslationReference]
-		const string Standard = "standard";
+		const string Standard = "options-mouse-scroll-type.standard";
 
 		[TranslationReference]
-		const string Inverted = "inverted";
+		const string Inverted = "options-mouse-scroll-type.inverted";
 
 		[TranslationReference]
-		const string Joystick = "joystick";
+		const string Joystick = "options-mouse-scroll-type.joystick";
 
 		[TranslationReference]
-		const string Alt = "alt";
+		const string Alt = "options-zoom-modifier.alt";
 
 		[TranslationReference]
-		const string Ctrl = "ctrl";
+		const string Ctrl = "options-zoom-modifier.ctrl";
 
 		[TranslationReference]
-		const string Meta = "meta";
+		const string Meta = "options-zoom-modifier.meta";
 
 		[TranslationReference]
-		const string Shift = "shift";
+		const string Shift = "options-zoom-modifier.shift";
 
 		[TranslationReference]
-		const string None = "none";
+		const string None = "options-zoom-modifier.none";
 
 		static InputSettingsLogic() { }