feat(theme): write vuetify style tag via style.textContent

Author: userquin

packages/vuetify/src/composables/theme.ts

@@ -294,7 +294,7 @@ export function createTheme (options?: ThemeOptions): ThemeInstance & { install:
   function getHead () {
     return {
       style: [{
-        children: styles.value,
+        textContent: styles.value,
         id: 'vuetify-theme-stylesheet',
         nonce: parsedOptions.cspNonce || false as never,
       }],