Merge branch 'fix/install-frontend-in-otp27' into 'develop'

Fix installing frontend in Erlang/OTP 27.1+

See merge request pleroma/pleroma!4300

lib/pleroma/frontend.ex

@@ -74,11 +74,14 @@ def unzip(zip, dest) do
 
         new_file_path = Path.join(dest, path)
 
-        new_file_path
+        path
         |> Path.dirname()
+        |> then(&Path.join(dest, &1))
         |> File.mkdir_p!()
 
-        File.write!(new_file_path, data)
+        if not File.dir?(new_file_path) do
+          File.write!(new_file_path, data)
+        end
       end)
     end
   end