Demo Wallet v2.0.0

Update

Turned this repo into monorepo with three packages:

• demo-wallet-client - website code
• demo-wallet-server - new server code
• demo-wallet-shared - moved all shared methods that are used in both client and server

What's Changed

• Dependency updates by @quietbits in #246
• Claimable balance: bug fix when claiming XLM by @quietbits in #248
• Readme: toml from localhost + removed roadmap by @quietbits in #250
• Update README.md for deposits with the reference server by @JakeUrban in #252
• Add GitHub Action to update dependencies monthly by @quietbits in #254
• Monorepo by @quietbits and @stfung77 in #255
• Dependency updates 2022-01 by @quietbits in #265

Full Changelog: v1.2.5...v2.0.0