Enhancement/issue 125 rebrand wallet connect page

[sulaimonifeoluwa4-blip]

Closes #125

Description

This PR removes deep UX debt by overhauling the legacy standalone /connect wallet onboarding page. It unifies our onboarding interfaces under a single source of truth (useWalletStore), providing an identical connection lifecycle whether a user interacts with the app via the main navbar or the landing gate.

Changes

• 🧠 State Synchronization: Stripped custom validation mechanisms from src/pages/Connect.tsx, wiring it directly into the Freighter wallet hooks driving Navbar.tsx.
• 🎨 Visual Harmonization: Re-skinned the layout card to match the dark/light tokens and spatial hierarchy defined in src/components/WalletConnect.tsx.
• 🌐 Network Clarity: Added clear textual hints instructing users on required network configurations (e.g., Testnet vs Mainnet settings).
• 🔀 Dashboard Handshake: Added automated route pushing to navigate active sessions smoothly over to /dashboard upon contract handshakes.

Acceptance Criteria Verification

• /connect page fully adopts the active theme and structural styling.
• State mutations tie directly back into the universal useWalletStore.
• Network environment warnings/guidelines are clear and present.
• Seamless post-connection redirect routing behaves deterministically.

How to Test

1. Disconnect your wallet extension.
2. Route directly to /connect locally.
3. Observe updated visual cues and network guidelines.
4. Click connect, sign via Freighter, and verify instant transition to /dashboard.

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[sulaimonifeoluwa4-blip]

all checks passed
please merge pr