Change offtopic color (to blue) and position

Using orange had a bit of a "this is a bad thing" implication to it (and
was hard to tell apart from the red of Malice). It also makes a bit more
sense to have the more-negative tags (Noise and Malice) to the right.

tildes/scss/_variables.scss

@@ -38,7 +38,7 @@ $topic-tag-spoiler-color: $yellow;
 // Colors for comment tags
 $comment-tag-joke-color: $cyan;
 $comment-tag-noise-color: $yellow;
-$comment-tag-offtopic-color: $orange;
+$comment-tag-offtopic-color: $blue;
 $comment-tag-malice-color: $red;
 
 $sidebar-width: 300px;

tildes/tildes/enums.py

@@ -41,8 +41,8 @@ class CommentTagOption(enum.Enum):
     """Enum for the (site-wide) comment tag options."""
 
     JOKE = enum.auto()
-    NOISE = enum.auto()
     OFFTOPIC = enum.auto()
+    NOISE = enum.auto()
     MALICE = enum.auto()
 
     @property