update: clear unused and fixes CSS

src/styles/components/_index.scss

@@ -1,5 +1,5 @@
 @import 'chat';
-@import 'comment.scss';
+@import 'comment';
 @import 'filters';
 @import 'howto';
 @import 'sidebar';

src/styles/components/howto.scss

@@ -12,6 +12,3 @@
     flex-shrink: 0;
   }
 }
-
-
-

src/styles/components/tags.scss

@@ -15,6 +15,5 @@
   font-size: 1.4rem;
   font-weight: 400;
   margin-left: 0.6rem;
-  margin-top: -2px;
-  padding: 0.3rem 0.98rem;
+  padding: 0.35rem 0.98rem;
 }