Update packages

[gagdiez]

Most packages are outdated (SDK versions), we need to update them, and update the examples if necessary. For the frontend, we need to update the near-wallet.js to make sure it has all the methods from here:

https://github.com/near/near-discovery/blob/9b6332176e7fb6e1495a9f077ef4d4fdc42573e8/src/components/WalletSelector.ts

Notice that in create-near-app we use Javascript and JSDocs, and the example is typescript. We want to keep using JS and JSDocs, not typescript.

[gagdiez]

fixed in #2156