Lint: Start cleanup of the i18n imports (#7327)

## Summary

Avoid direct access of i18n instance to favor useI18n

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-7327-Lint-Start-cleanup-of-the-i18n-imports-2c56d73d3650811d9214c9a02863a5a3)
by [Unito](https://www.unito.io)

---------

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

src/i18n.ts

@@ -197,6 +197,7 @@ export const i18n = createI18n({
 })
 
 /** Convenience shorthand: i18n.global */
+/** @deprecated use useI18n */
 export const { t, te, d } = i18n.global
 
 /**
@@ -204,7 +205,8 @@ export const { t, te, d } = i18n.global
  *
  * @param key - The key to translate.
  * @param fallbackMessage - The fallback message to use if the key is not found.
+ * @deprecated Remove, use the defaultMsg overload
  */
 export function st(key: string, fallbackMessage: string) {
-  return te(key) ? t(key) : fallbackMessage
+  return t(key, fallbackMessage)
 }