fix(components): fixed blockquote inline code styling

Author: Kirill Bolotsky

src/components/shared/blockquote/blockquote.module.scss

@@ -22,7 +22,7 @@ blockquote {
 
 blockquote.doc-blockquote-warning {
   border-left: 2px solid $color-error;
-  span {
+  span[class='kicker'] {
     display: block;
     text-transform: uppercase;
     font-size: $font-size-xs;

src/components/shared/blockquote/blockquote.view.js

@@ -10,7 +10,11 @@ const Blockquote = ({ children, mod = 'default' }) => {
       warning: 'warning!',
       default: '',
     };
-    return kickers[mod] ? <span>{kickers[mod]}</span> : kickers[mod];
+    return kickers[mod] ? (
+      <span className="kicker">{kickers[mod]}</span>
+    ) : (
+      kickers[mod]
+    );
   };
   return (
     <blockquote