Update flattool

Remove typo in the line that checks if flathub is added. That typo meant flathub would never be found.

flattool

@@ -397,7 +397,7 @@ if [ "$asFirstRun" == "true" ]; then
     echo # For a nice newline
 
     # Adding flathub if its not found
-    hasFlathub=$(flatpak remotes | grep flathdub)
+    hasFlathub=$(flatpak remotes | grep flathub)
     if [ -z "$hasFlathub" ]; then
         answer=""
         while [ -z "$answer" ]; do