fix: auto connect for 1.20+ (dscalzi#316)

Author: jebibot

app/assets/js/processbuilder.js

@@ -307,10 +307,15 @@ class ProcessBuilder {
 
     _processAutoConnectArg(args){
         if(ConfigManager.getAutoConnect() && this.server.rawServer.autoconnect){
-            args.push('--server')
-            args.push(this.server.hostname)
-            args.push('--port')
-            args.push(this.server.port)
+            if(mcVersionAtLeast('1.20', this.server.rawServer.minecraftVersion)){
+                args.push('--quickPlayMultiplayer')
+                args.push(`${this.server.hostname}:${this.server.port}`)
+            } else {
+                args.push('--server')
+                args.push(this.server.hostname)
+                args.push('--port')
+                args.push(this.server.port)
+            }
         }
     }