Fix check for insufficient balance in routing modal

[tiagofilipenunes]

fix #1216

• Check that user is connected when checking for insufficient balance
• Change CTA text to 'Connect Wallet' when user is not connected

[cloudflare-pages[bot]]

Deploying carbon-app-sei with    Cloudflare Pages

Latest commit:	fd52162
Status:	✅  Deploy successful!
Preview URL:	https://a0dbd1ff.carbon-app-sei.pages.dev
Branch Preview URL:	https://issue--1216.carbon-app-sei.pages.dev

View logs

[cloudflare-pages[bot]]

Deploying carbon-app with    Cloudflare Pages

Latest commit:	fd52162
Status:	✅  Deploy successful!
Preview URL:	https://2d396a33.carbon-app-csq.pages.dev
Branch Preview URL:	https://issue--1216.carbon-app-csq.pages.dev

View logs