Fixes to client side release

Fix broken /effects
Fix broken github workflow that checks the site is up and okay.

Client side only release and Cloudflare Pages deployment

App now runs entirely in the browser, no server side rendering.

Moved to Cloudflare pages.

Fixes from stellar-sdk upgrade

Released 2.7.0 too soon. Whilst it fixed the contracts view it broke pretty much every other view.

This release fixes all those broken views.

Upgrade stellar-sdk to latest

Fixes the broken contract view:

• upgrade stellar-sdk@11.1.0 -> @stellar/stellar-sdk@14.3.2

Claimable balances, updated directory, resilience

Changes:

• new search by claimable balance feature
• new claimable balance view
• new liquidity pools detail view
• updated the directory - assets and exchanges
• resilience - retry on horizon service unavailable errors which are using short lived but occur often
• more smoke tests

Link directly to alternative Horizon's and Soroban RPC servers

Changes:

• #360

Soroban publicnet release readyness and enhancements

Changes:

• stellar-sdk upgraded to latest stable ready for public net upgrade
• custom network address setting restored and soroban RPC URL added to the form
• playwright based smoke tests added and hooked up to github actions
• upgraded dependencies including remix to v2 which has removed all high level vulnerabilities
• basic liquidity pools view added
• search by federated address fixed
• improved error handling
• multiple bug fixes

Contract interface and stability

Added Contract Interface tab which shows the Rust interface of the contract.

Stability improvements - fixed a number of issues showing up in sentry so the app is now more stable and displays more meaningful and useful error messages.

Deployed for soroban networks:

• testnet
• futurenet

/interface added for Rust interface generation

The backend API now has a /interface for generating and fetching the Rust interface of a contract from it's Wasm bytecode.

Fixes to 2.0.0 and restored routes

Added contract storage tab.
Added contract code decompile tabs.
Added backend endpoints for contract decompilation.

Handle contract data with bigint.

Restored routes missing in 2.0.0:

• /asset/<assetId>
• /error/not-found/<searchStr>
• /search/<searchStr>

Fixes to sync with contract and sdk upgrades.
Fixes to error handling - in particular account not found.

Rendering a number of claimable balance operations and effects that were not previously handled. Still more to be handled soon ...