Angular 17 bug fixes / improvements (#235)

* Update ts version

* Update angular version

* Update clarity version

* Refactor markdown component

* Update cds core and add style sheets

* Add theme settings

* Update @angular/cdk

* Fix markdown rendering

* Set background color via variable to consider theme changes

* Implement custom text tooltip component

* Add prettier as dev dependency

* Add lint-staged as dev dependency

* Migrate code to new @if/@for/@switch syntax

* Update angular-split version

* Migrate ngx-dynamic-hooks to v3

* Replace deprecated xterm packages

* Fix path to xterm style sheet

* remove unused Web Components polyfills

* update @auth0/angular-jwt

* update ng2-charts

* update packages

* run nmp audit fix

* Add authn service. Improve theme handler

* Minor fix

* Ensure that note component always receives valid type

* Enable strict null checks & function types

* Fix bug that steps do not load initially

* Remove unused component

* Fix: Reference to scenario needed to correctly update steps

* Fix icons

* Remove unused code

* Replace clr-alerts by our alert component

* Minor fix

* Use "@else" or "@else if" where possible

* Simplify glossary component

* Fix nested md in hidden/node component

* Escape code to allow double quotes etc.

* Prevent removal of backslashes in ngx-dynamic-hooks inputs

* Clarity css vars changed ... add login padding

* Fix path

* Allow empty diffs after formatting

* Use async pipe for markdown Promise

* fix bind context for validators, to resolve "this"

* Remove unused imports/comments

* Fetch datetimepicker via npm

* Remove console.log

* display datetimepicker correctly inside signpost

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Co-authored-by: PhilipAB <[email protected]>