chore: move sample to expo (#3880)

* perf: ensure we do not provide callback to native if no callback provided from app

* chore: rework bufferConfig to make it more generic and reduce ReactExoplayerView code size

* chore: improve issue template

* fix(android): avoid video view flickering at playback startup

* fix: ensure player doesn't start when view is unmounted

* chore: move basic sample to expo

* Update examples/basic/package.json

Co-authored-by: Krzysztof Moch <krzysmoch.programs@gmail.com>

* chore: use last expo version

* chore: fix podfile

---------

Co-authored-by: Krzysztof Moch <krzysmoch.programs@gmail.com>

examples/basic/babel.config.js

@@ -9,6 +9,7 @@ module.exports = {
       {
         alias: {
           [pak.name]: path.join(__dirname, '../..', pak.source),
+          extensions: ['.tsx', '.ts', '.js', '.json'],
         },
       },
     ],