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 -->

---------

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

apps/web/src/components/formatter/locale-date.tsx

@@ -1,49 +0,0 @@
-'use client';
-
-import type { HTMLAttributes } from 'react';
-import { useCallback, useEffect, useState } from 'react';
-
-import type { DateTimeFormatOptions } from 'luxon';
-import { DateTime } from 'luxon';
-
-import { useLocale } from '@documenso/lib/client-only/providers/locale';
-
-export type LocaleDateProps = HTMLAttributes<HTMLSpanElement> & {
-  date: string | number | Date;
-  format?: DateTimeFormatOptions | string;
-};
-
-/**
- * Formats the date based on the user locale.
- *
- * Will use the estimated locale from the user headers on SSR, then will use
- * the client browser locale once mounted.
- */
-export const LocaleDate = ({ className, date, format, ...props }: LocaleDateProps) => {
-  const { locale } = useLocale();
-
-  const formatDateTime = useCallback(
-    (date: DateTime) => {
-      if (typeof format === 'string') {
-        return date.toFormat(format);
-      }
-
-      return date.toLocaleString(format);
-    },
-    [format],
-  );
-
-  const [localeDate, setLocaleDate] = useState(() =>
-    formatDateTime(DateTime.fromJSDate(new Date(date)).setLocale(locale)),
-  );
-
-  useEffect(() => {
-    setLocaleDate(formatDateTime(DateTime.fromJSDate(new Date(date))));
-  }, [date, format, formatDateTime]);
-
-  return (
-    <span className={className} {...props}>
-      {localeDate}
-    </span>
-  );
-};