chore(docs): Add information about customization limitations in Accou…

…nt Portal and Localization guides (#1609)

Signed-off-by: Kenton Duprey <[email protected]>

docs/customization/account-portal/overview.mdx

@@ -23,6 +23,9 @@ After a user has finished their flow in an Account Portal page, Clerk automatica
 
 For each application environment, Clerk provides pages for sign-up, sign-in, user profile, organization profile, and organization creation flow. **To integrate the Account Portal with your application, check out the [setup guide](/docs/customization/account-portal/getting-started).**
 
+> [!IMPORTANT]
+> These pages cannot be customized beyond the options provided in the [Clerk Dashboard](https://dashboard.clerk.com). If you need more customization such as [localization](/docs/customization/localization), consider using Clerk's [prebuilt components](/docs/components/overview) or [building your own custom user interface using Clerk's API](/docs/custom-flows/overview).
+
 ## Hosted pages
 
 ### Sign-in

docs/customization/localization.mdx

@@ -58,6 +58,9 @@ Clerk currently supports the following languages with English as the default:
 
 ### Usage
 
+> [!CAUTION]
+> The localizations will only update the text in the [Clerk components](/docs/components/overview) used in your application. The hosted [Clerk Account Portal](/docs/customization/account-portal/overview) will remain in English.
+
 To get started, install the `@clerk/localizations` package.
 
 <CodeBlockTabs type="installer" options={["npm", "yarn", "pnpm"]}>