fix: replace inline HTML on /unauthorized route with proper page component

[Jyoti1-pog]

Description

The /unauthorized route in App.jsx rendered inline JSX (<div><h1>...)
instead of a dedicated, reusable page component. This replaces it with a
proper Unauthorized page that matches the app's design system.

Closes #283

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature
• Breaking change
• Documentation update

Changes

• Added src/pages/Unauthorized.jsx — a reusable page component:
  • Consistent UI: uses the project's theme CSS variables
    (--bg-main, --color-primary, --shadow-glass, …), a card layout,
    framer-motion entrance animation, and a lucide-react icon —
    matching Disclaimer.jsx / Terms.jsx.
  • Navigation: "Back to Home" link (/) and a "Go Back" button
    (navigate(-1)).
  • i18n support: renders English/Hindi based on the existing
    useLanguage() context, so it follows the app-wide language toggle.
• Updated src/App.jsx:
  • Lazy-imported the new component.
  • Replaced the 6 lines of inline JSX with <Route path="/unauthorized" element={<Unauthorized />} />.

Scope: only App.jsx was modified among existing files (per the issue).
i18n strings are kept inside the new component so the shared
LanguageContext.jsx is left untouched.

How to test

1. Log in as any role (e.g. LITIGANT).
2. Manually visit a route for a different role (e.g. /admin) — you are
   redirected to /unauthorized.
3. Verify the styled page renders with both navigation buttons working.
4. Toggle the language and confirm the text switches between English/Hindi.

Screenshots

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Project	Deployment	Actions	Updated (UTC)
nyaysetu	Ready	Preview, Comment	May 20, 2026 4:11pm