Other changes
- start Wallet Connect SDK using web engine after wallet is ready
- source WC project ID from the constants in nim
- close list when opening the `ConnectDappModal`
- remove the old POC modal instantiation
- rename ConnectDappPopup to Modal for consistency
- move specific dapps related user settings to their place in the component
- add DAppsStore to be used for dapps abstraction
Updates #14556
Stefan