Add a proper navigation bar to improve app-wide navigation and discoverability

[weiwei-gitch]

Description

DevTrack currently has no navigation bar. The landing page only displays a Sign In → link in the top-right corner. Once a user is signed in, there is no persistent navigation to move between different sections of the dashboard — such as contributions, streaks, PR velocity, or settings. This severely limits usability and discoverability.

Problem

• No way to navigate between app sections (Dashboard, Streaks, PRs, Goals, Settings) from any page.
• After signing in, users have no visual anchor to understand the app's structure or find features.
• The lone "Sign In →" link does not scale once the user is authenticated — there is no profile, logout, or account menu.
• No mobile-friendly hamburger menu exists for smaller viewports.
• The absence of a navbar makes the app feel incomplete and harder to use for new users.

Proposed solution

Add a persistent, responsive navbar that includes:

• Logo / brand — DevTrack logo on the left, linking to the homepage.
• Navigation links — Dashboard, Streaks, Pull Requests, Goals, and Leaderboard (or equivalent top-level sections).
• Auth state — Show "Sign in with GitHub" when logged out; show a user avatar + dropdown (Profile, Settings, Sign out) when logged in.
• Active state indicator — highlight the current page link so users know where they are.
• Responsive hamburger menu — collapses links into a slide-out or dropdown menu on mobile viewports.
• Sticky/fixed position — the navbar should remain visible while scrolling.

I would like to work on this issue. Could you please assign this issue to me
ThankYou

[github-actions]

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[mittalsonal]

I checked the issue thread before starting and there is no active contributor working on this beyond the automatic repo bot comment, so I can take it as a focused navigation pass. I’m implementing one shared sticky responsive navbar at the app shell level, adding auth-aware actions for signed-in vs signed-out users, and wiring dashboard section links for Streaks, Pull Requests, Goals, Leaderboard, and Settings so the new navigation goes to real destinations instead of placeholder routes.

[mittalsonal]

Implemented this in PR #1331. I kept the scope focused on a shared sticky responsive navbar in the app shell, auth-aware signed-in vs signed-out actions, and real dashboard anchors for Streaks, Pull Requests, Goals, Leaderboard, and Settings so navigation points to actual destinations instead of placeholder routes.

[Bhavya2205-maker]

I would like to work on improving this

[vaishnavidark4-tech]

Hi @weiwei-gitch,
I would like to work on this issue under GSSoC'26.
Please assign it to me.

[github-actions]

Assigned to @vaishnavidark4-tech! You have 7 days to open a PR. No PR after 7 days = auto-unassigned so others can pick it up. Good luck!