chore: bump expo version

[rolznz]

Expo Go has released a new version, which requires us to update (at least on iOS).

There seem to be some bugs with the change. For some reason, the webview crypto polyfill seems to not be working (NWC requests do not work)

[rolznz]

Either we need message-port-polyfill or https://github.com/nbd-wtf/nostr-tools/compare/master...rolznz:fix/yield-thread-react-native?expand=1

But this requires us to update the JS SDK to use nostr-tools 2.x first. getAlby/js-sdk#275 and we should update lightning-tools too.

[rolznz]

Update: adding "message-port-polyfill": "^0.2.0",

And calling import "message-port-polyfill"; from applyGlobalPolyfills is enough. applyGlobalPolyfills might need to be imported before the expo entry point (TBC)

[rolznz]

Edit: it looks like the crypto webview polyfill is still needed.

[im-adithya]

Changed the splash background color to mask the difference

Before and After

[rolznz]

@im-adithya found we don't need the webview crypto polyfill if we remove the crypto subtle dependency in lightning-tools. This should be consumed before merging this PR getAlby/js-lightning-tools#179

[im-adithya]

tACK