Run `prettier` on //scouting

Signed-off-by: Philipp Schrader <philipp.schrader@gmail.com>
Change-Id: Idbb6011040f44d2b6c4158bf4c84a37818f258a5
diff --git a/scouting/www/common.css b/scouting/www/common.css
index 43f117e..700df9e 100644
--- a/scouting/www/common.css
+++ b/scouting/www/common.css
@@ -3,7 +3,8 @@
 .error_message {
   color: red;
 }
-.error_message:empty, .progress_message:empty {
+.error_message:empty,
+.progress_message:empty {
   /* TODO(phil): Figure out a way to make these take up no horizontal space.
    * I.e. It would be nice to keep the error message and the progress message
    * aligned when they are non-empty. */