Fix Webpack build errors and BigInt issues by adding Node.js polyfills and missing wallet SDKs

fix

fix: remove solana deps and config build to ignore them

chore: prepare frontend for vercel deployment

feat: implement responsive mobile menu for navigation

feat: implement unique SEO metadata for all routes

feat: implement transaction feedback toasts for all blockchain actions

style: revert hero heading font size and container width

style: increase hero heading font size

feat: connect landing page live campaigns to real blockchain data

feat: add user dashboard with campaign tracking and stats

refactor: optimize campaign details page for mobile responsiveness

refactor: redesign campaign details page to match design system

feat: complete campaign details page with governance and escrow features

style: center justify create campaign header and content