[INTER-2156] Clean-up tasks

[Orkuncakilkaya]

Navigation and Routing Refactor:

• Switched from static component rendering to Angular Router in both demo apps, enabling navigation between "Landing", "Home", and "Preloaded" pages. Updated navigation UI with a top nav bar.
• Added a new LandingComponent as the main entry point for both demo apps, featuring navigation buttons.

Cache Management Improvements:

• Enhanced the "Home" and "Preloaded" components in both demos to clear the cache on initialization and provided a "Clear cache" button in the UI.

Documentation:

• Updated the README.md to clarify the distinction between the legacy and Angular 21 demo applications and added setup instructions for the new demo.

This PR Solves INTER-2156

[github-actions]

Coverage report

St.❔	Category	Percentage	Covered / Total
🟡	Statements	75%	30/40
🟡	Branches	60%	3/5
🟢	Functions	83.33%	5/6
🟡	Lines	72.97%	27/37

Test suite run success

10 tests passing in 2 suites.

Report generated by 🧪jest coverage report action from ddfcdcc

Show full coverage report

St	File	% Stmts	% Branch	% Funcs	% Lines	Uncovered Line #s
🟡	All files	75	60	83.33	72.97
🔴	src	0	100	100	0
🔴	public-api.ts	0	100	100	0	5-13
🟢	src/lib	93.33	60	100	92.59
🟢	fingerprint.module.ts	100	100	100	100
🟢	fingerprint.providers.ts	100	100	100	100
🟢	fingerprint.service.ts	89.47	60	100	88.88	57,64
🟢	version.ts	100	100	100	100
🟡	src/lib/tokens	66.66	100	0	66.66
🟡	fingerprint-angular-settings-token.ts	66.66	100	0	66.66	7

[TheUnderScorer]

LGTM, left one small suggestion, thanks!

[github-actions]

⚠️ This PR doesn't contain any changesets. If there are user-facing changes, don't forget to run:

pnpm exec changeset

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