fix(material-experimental/theming): fix filled text field

Fixes that a copy-paste error in #28414 broke the M3 filled text field.

Author: crisbeto

src/material/core/tokens/m2/_index.scss

@@ -150,7 +150,7 @@
       _get-tokens-for-module($theme, tokens-mdc-extended-fab),
       _get-tokens-for-module($theme, tokens-mdc-fab),
       _get-tokens-for-module($theme, tokens-mdc-filled-button),
-      _get-tokens-for-module($theme, tokens-mdc-filled-button),
+      _get-tokens-for-module($theme, tokens-mdc-filled-text-field),
       _get-tokens-for-module($theme, tokens-mdc-form-field),
       _get-tokens-for-module($theme, tokens-mdc-icon-button),
       _get-tokens-for-module($theme, tokens-mdc-linear-progress),