fix: exception on initialization for NgModule projects

fix: error `<ion-toolbar> element is needed…` in standalone

feat: support for standalone components

Upgrade to Ionic 8 and Angular 16

feat(ionic): upgrade to Ionic7 and Angular v14

Merge branch 'release/4.0.0'

chore: bump version, update changelog

docs(readme): update

refactor: redo for Ionic 5

Upgrade to Ionic5 + Angular12