feat: enhance landing page UI, update sections, and fix dateUtils tim…

[mahakagarwal7]

This PR fully addresses the landing page improvement request outlined in Issue #36, while also deploying a crucial bug fix for date timezone handling that was breaking the test suite. The landing page has received a significant visual and structural upgrade with a focus on a high-end, premium aesthetic.

Features & Enhancements:

1)Feature Showcase Overhaul: Replaced the plain list with a responsive 4-card Bento Grid layout (grid-cols-4). Integrated custom-generated 3D glossy icons to elevate visual fidelity.

2)Premium UI Polish: Upgraded the scroll-reveal animations to use a highly fluid spring curve (cubic-bezier(0.16, 1, 0.3, 1)). Added tactile hover lifts (translateY(-1)) to grid elements and a "pause-on-hover" capability to the Commit Ticker for better readability.

3)New 'How It Works' Section: Converted text-heavy setup instructions into a sleek 3-step visual guide using custom application mockup assets.

4)Footer Implementation: Added LandingFooter containing crucial open-source links (GitHub, CONTRIBUTING.md, LICENSE, Issues).

Bug Fixes:
Timezone Test Fix: Resolved the flaky dateUtils.test.ts failure by converting toDateStr to explicitly use getUTCFullYear and UTC methods, ensuring date formatting remains consistent regardless of the local runner's timezone.

[vercel]

@mahakagarwal7 is attempting to deploy a commit to the PRIYANSHU DOSHI's projects Team on Vercel.

A member of the Team first needs to authorize it.

[github-actions]

GSSoC Label Checklist 🏷️

@Priyanshu-byte-coder — please apply the appropriate labels before merging:

Difficulty (pick one):

• level:beginner — 20 pts
• level:intermediate — 35 pts
• level:advanced — 55 pts
• level:critical — 80 pts

Quality (optional):

• quality:clean — ×1.2 multiplier
• quality:exceptional — ×1.5 multiplier

Validation (required to score):

• gssoc:approved — counts for points
• gssoc:invalid / gssoc:spam / gssoc:ai-slop — does not score

Type labels (type:*) are auto-detected from files and title. Review and adjust if needed.
Points formula: (difficulty × quality_multiplier) + type_bonus

[Priyanshu-byte-coder]

This PR has developed merge conflicts after recent merges to main. Please rebase onto the latest main branch, resolve all conflicts, and force-push. Once the PR is conflict-free it will be reviewed for merging.

[gitguardian]

️✅ There are no secrets present in this pull request anymore.

If these secrets were true positive and are still valid, we highly recommend you to revoke them.
While these secrets were previously flagged, we no longer have a reference to the
specific commits where they were detected. Once a secret has been leaked into a git
repository, you should consider it compromised, even if it was deleted immediately.
Find here more information about risks.

---

^{_{🦉 GitGuardian detects secrets in your source code to help developers and security teams secure the modern development process. You are seeing this because you or someone else with access to this repository has authorized GitGuardian to scan your pull request.}}

[mahakagarwal7]

@Priyanshu-byte-coder
Hi,I've successfully rebased this PR onto the latest main branch, resolved all the merge conflicts, and force-pushed the clean history.

I've also verified that the tests are passing (including the recent Playwright E2E test updates for the Dashboard). Let me know if there's anything else needed from my end before merging. Thanks for reviewing

[Priyanshu-byte-coder]

Thanks for contributing! This PR has a structural issue in DashboardHeader.tsx — it introduces an extra </div> that breaks the component layout. Also, several files in this PR (DashboardHeader.tsx, DailyNoteWidget.tsx) have already been updated on main. Please rebase, fix the JSX structure, and re-open.