change proj functions for new dir structure

fish.configlink/functions/projects.fish

@@ -2,15 +2,12 @@
 
 function projects --description "Projects tools"
 
+    set PROJ $HOME/dev/work
     alias proj='cd $PROJ'
 
     function prj --description "cd to a project"
         set projdir (ls $PROJ | fzf)
-        if [ $status -eq 0 ]
-            cd $projdir
-        else
-            return 1
-        end
+        and cd $PROJ/$projdir
     end
 
 end