Use type safe comparison

Signed-off-by: Michal Čihař <michal@cihar.com>

weblate/media/loader-bootstrap.js

@@ -2,7 +2,7 @@ var loading = 0;
 var machineTranslationLoaded = false;
 var activityDataLoaded = false;
 
-if (window.location.hash && window.location.hash == '#_=_') {
+if (window.location.hash && window.location.hash === '#_=_') {
     window.location.hash = '';
 }