refactor(command): 🚚 move vehicle commands near other moves

Move the following:
- vehicle commands next to other movement related commands like `go`.
- move `ride` / `mount` command functionality into mover plugin

lib/plugins/mover.js

@@ -194,6 +194,10 @@ function command(message_parts, player) {
                     break
             }
             break
+        case "ride":
+        case "mount":
+            bot.mount(bot.nearestEntity())
+            break
         case "w":
         case "f":
             command(["forward"].concat(message_parts.slice(1)))