fix: refactor dates (#1321)

## Description

Refactor the current date formatting system to utilize Lingui.

## Changes Made

- Remove redundant `LocaleData` component with Lingui dates

## Important notes

For the internal pages for certificates, default to en-US to format any
dates.

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit


- **New Features**
- Enhanced internationalization support across various components by
utilizing the `i18n` object for date formatting.
- Streamlined locale management by removing cookie-based language
handling and adopting a more centralized approach.

- **Bug Fixes**
- Improved date formatting consistency by replacing the `LocaleDate`
component with direct calls to `i18n.date()` in multiple components.

- **Documentation**
- Updated localization strings in the `web.po` files to reflect recent
changes in the source code structure.

- **Chores**
- Minor formatting adjustments and code organization improvements across
various files to enhance readability and maintainability.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

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Co-authored-by: github-actions <github-actions@documenso.com>

packages/lib/client-only/providers/i18n.client.tsx

@@ -5,19 +5,24 @@ import { useState } from 'react';
 import { type Messages, setupI18n } from '@lingui/core';
 import { I18nProvider } from '@lingui/react';
 
+import type { I18nLocaleData } from '../../constants/i18n';
+
 export function I18nClientProvider({
   children,
-  initialLocale,
+  initialLocaleData,
   initialMessages,
 }: {
   children: React.ReactNode;
-  initialLocale: string;
+  initialLocaleData: I18nLocaleData;
   initialMessages: Messages;
 }) {
+  const { lang, locales } = initialLocaleData;
+
   const [i18n] = useState(() => {
     return setupI18n({
-      locale: initialLocale,
-      messages: { [initialLocale]: initialMessages },
+      locale: lang,
+      locales: locales,
+      messages: { [lang]: initialMessages },
     });
   });