blacklists: refactor blacklist html+css.

* Consolidate blacklist css in one file.
* blacklist box: fix tag colors not dimming on hover.
* blacklist box: allow middle clicking on tags to open in new tab.
* /wiki_pages: move blacklist controls to top of tag sidebar.
* /wiki_pages: fix missing "disable all" / "re-enable all" buttons.

app/javascript/src/styles/common/blacklists.scss

@@ -0,0 +1,31 @@
+@import "../base/000_vars.scss";
+
+#blacklist-box {
+  display: none;
+
+  a.blacklisted-active {
+    text-decoration: line-through;
+  }
+
+  &.sidebar-blacklist ul li {
+    list-style-type: disc;
+    list-style-position: inside;
+  }
+
+  &.inline-blacklist {
+    margin-bottom: 1em;
+
+    #blacklist-list {
+      display: inline;
+
+      li {
+        display: inline;
+        margin-right: 1em;
+      }
+    }
+  }
+}
+
+.post-preview.blacklisted-active, #image-container.blacklisted-active, #c-comments .post.blacklisted-active {
+  display: none;
+}

app/javascript/src/styles/common/main_layout.scss

@@ -65,23 +65,6 @@ div#page {
     margin-bottom: 1em;
   }
 
-  aside#sidebar > section#blacklist-box ul {
-    margin-left: 1em;
-
-    li {
-      list-style-type: disc;
-    }
-
-    a {
-      color: $link_color;
-      cursor: pointer;
-    }
-
-    span {
-      color: #AAA;
-    }
-  }
-
   section#content {
     overflow: visible;
     margin-left: 15em;