fixup! fix(material-experimental/mdc-list): use body-1 rather than subtitle-1 typography for list items

Author: mmalerba

src/material-experimental/mdc-list/_list-theme.scss

@@ -57,6 +57,10 @@
     @include list-option-theme.private-list-option-typography-styles();
   }
 
+  // According to the public spec this should be subtitle-1.
+  // However, body-1 and subtitle-1 are nearly identical in the public spec,
+  // and the Google-specific spec states that it should be body-1.
+  // For consistency, we use body-1 for both public and Google internal.
   .mat-mdc-list-item .mdc-list-item__primary-text {
     @include typography-utils.typography-level($config, body-1);
   }