Use same embedded scope everywhere

Author: mvllow

syntaxes/fjsx15/literal/string/styled-component.sublime-syntax

@@ -201,7 +201,7 @@ contexts:
 
   styled-component-content-keyframes:
     - clear_scopes: true
-    - meta_content_scope: source.css
+    - meta_content_scope: source.css.embedded.js
     - include: comment-no-pop
     - include: shared-content
     - match: (?=\S)