Remove unnecessary line break for review queue flag (#20214)

Fix https://github.com/mozilla/addons-server/issues/20213

static/css/zamboni/reviewers.less

@@ -67,10 +67,10 @@ body.content-review .primary .article {
 }
 
 body.content-review .ed-sprite-needs-admin-content-review {
-    display: block /* show needs admin content review flag on content review pages */
+    display: inline-block /* show needs admin content review flag on content review pages */
 }
 body:not(.content-review) .ed-sprite-needs-admin-code-review {
-    display: block /* show needs admin code review on non-content review pages */
+    display: inline-block /* show needs admin code review on non-content review pages */
 }
 body:not(.content-review) .ed-sprite-needs-admin-content-review {
     display: none /* hide needs admin content review on non-content review pages */