Add Capacitor 4 support

[mraible]

Fix #128.

Depends on martinkasa/capacitor-secure-storage-plugin#59.

In the meantime, you can clone the following repo in a directory alongside this repo and build it first.

git clone [email protected]:martinkasa/capacitor-secure-storage-plugin.git
cd capacitor-secure-storage-plugin
npm i
npm run build
npm pack

Currently, I see the following issue on iOS when I run npx cap open ios. I'm not sure how to fix.

⚡️  [error] - ERROR Error: Uncaught (in promise): Error: "Preferences" plugin is not implemented on ios
CapacitorException@capacitor://localhost/vendor.js:764:10
createPluginMethod@capacitor://localhost/vendor.js:886:37
@capacitor://localhost/vendor.js:895:40
onInvoke@capacitor://localhost/vendor.js:98549:31
@capacitor://localhost/polyfills.js:296:43
@capacitor://localhost/polyfills.js:1716:31
onInvokeTask@capacitor://localhost/vendor.js:98537:35
@capacitor://localhost/polyfills.js:353:49
drainMicroTaskQueue@capacitor://localhost/polyfills.js:823:32
promiseReactionJob@[native code]
⚡️  [error] - ERROR Error: Uncaught (in promise): Error: "Browser" plugin is not implemented on ios
CapacitorException@capacitor://localhost/vendor.js:764:10
createPluginMethod@capacitor://localhost/vendor.js:886:37
@capacitor://localhost/vendor.js:895:40
onInvoke@capacitor://localhost/vendor.js:98549:31
@capacitor://localhost/polyfills.js:296:43
@capacitor://localhost/polyfills.js:1716:31
onInvokeTask@capacitor://localhost/vendor.js:98537:35
@capacitor://localhost/polyfills.js:353:49
drainMicroTaskQueue@capacitor://localhost/polyfills.js:823:32
promiseReactionJob@[native code]

[mraible]

I was able to fix these issues by running the following in my test app:

npm i @capacitor/[email protected] @capacitor/[email protected]
npx cap sync

[mraible]

@wi3land Are you able to test the demos with an identity server? I assume you set something up locally to test things in the past?

[mraible]

I was able to get most of the demos working, except for Angular + Cordova.