finished the mechanism for setting the language

levels/en_EN/files/files-delete

@@ -0,0 +1,36 @@
+title = Unexpected Roommates
+cards = file-delete
+
+[description]
+
+The first day at Time Travel School comes to an end and you receive the key to your room.
+Full of excitement you open the door just to find... spider webs! Spider webs everywhere!
+
+Remove all the spider webs you can find with the remove card!
+
+[cli]
+
+On the command line, you can easily delete all files ending in -web using this command:
+
+    rm *web
+
+[setup]
+
+echo A tiny spider web is next to your window. > tiny_web
+echo A big spider web sticks above your bed. > big_web
+echo A cozy bed. > bed
+echo An extra thick spider web is right beside your door. > thick_web
+
+[win]
+
+# Remove all spider webs.
+! ls | grep thick_web &&
+! ls | grep big_web &&
+! ls | grep tiny_web
+
+# But make sure you keep your bed!
+ls | grep bed
+
+[congrats]
+
+Your room looks now very tidy and cozy! Time to unpack your stuff!