chore: Upgrade a whole lotta dependencies (#436)

* chore: Upgrade a lot of dependencies for `./`

* chore: Upgrade a lot of dependencies for `./example`

* chore: Upgrade a lot of dependencies for `./docs`

* Use new `EventEmitter` syntax (`.remove()`)

* Update Podfile.lock

* docs: Use watch mode

* docs: Replace all relative links with absolute

* Fix all links

* Update docusaurus.config.js

* Upgrade docusaurus-plugin-typedoc to fix docs build

* Update yarn.lock

* Upgrade typescript to 4.4.3

* Fix error unknown

* Update package.json

* Upgrade typedoc

* Upgrade a few more deps

* Fix deprecated sidebar syntax

* Update Gemfile.lock

example/src/hooks/useIsForeground.ts

@@ -9,10 +9,8 @@ export const useIsForeground = (): boolean => {
     const onChange = (state: AppStateStatus): void => {
       setIsForeground(state === 'active');
     };
-    const subscription = AppState.addEventListener('change', onChange);
-    return () => {
-      subscription.remove();
-    };
+    const listener = AppState.addEventListener('change', onChange);
+    return () => listener.remove();
   }, [setIsForeground]);
 
   return isForeground;