refactor: move quests out of server

+ move quests from server/quests to ./quests
+ add frontend image in docker compose development

quests/helloworld/home/forgotten_scroll.txt

@@ -0,0 +1,7 @@
+Once a mighty kingdom, now in darkness,
+The power of Unix lies dormant, waiting.
+To reclaim the root, the forgotten language,
+Must be learned, commands of old rekindled.
+Speak the words of power and awaken the might of Unix:
+
+Unix, rise and guide me!