css: use correct size in annotated decoration

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>

cgit.css

@@ -711,6 +711,7 @@ div#cgit a.deco {
 
 div#cgit div.commit-subject a.branch-deco,
 div#cgit div.commit-subject a.tag-deco,
+div#cgit div.commit-subject a.tag-annotated-deco,
 div#cgit div.commit-subject a.remote-deco,
 div#cgit div.commit-subject a.deco {
 	margin-left: 1em;