Performance: limit Sentry tracking, fix NFT hooks

Fixes APP-1555 Fixes APP-1566

What changed (plus any additional context for devs)

Limits Sentry tracking to crash reporting, startup time tracking, and explicit error reporting
- Not fully clear why but Sentry is badly hurting app performance — limiting it to tracking crashes and startup times solves the problem
Fixes issues causing NFT data to be excessively recreated — some more improvements to be made but the big problems are resolved
- Had to bump the nftsQueryKey persisterVersion because the structure of data (from the useQuery hook) is now different with the NFT data transformation moved into the useQuery.
- The structure of the data returned by the useLegacyNFTs wrapper hook is unchanged and fully backwards compatible — ideally we later remove the wrapper hook and migrate to the new NFT types.
Removes non-critical ENS-related hooks that were making a significant number of network requests
Removes unused code in App.js and in the WalletScreen component

Also:

Isolates the dapps data from UI components in the browser, because the dapps object is quite heavy and it's unnecessary for it to cause re-renders in search