[Snyk] Fix for 2 vulnerabilities

[MManke188]

Snyk has created this PR to fix 2 vulnerabilities in the npm dependencies of this project.

Snyk changed the following file(s):

• frontend/package.json
• frontend/package-lock.json

Vulnerabilities that will be fixed with an upgrade:

	Issue	Score
	Race Condition SNYK-JS-ANGULARPLATFORMSERVER-12613569	641
	Race Condition SNYK-JS-ANGULARSSR-12613576	641

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🦉 Race Condition

[Copilot]

Pull Request Overview

This PR fixes 2 high-severity race condition vulnerabilities in Angular dependencies by upgrading @angular/platform-server and @angular/ssr from version 17.3.1 to their respective patched versions in the 18.x series.

• Updates @angular/platform-server from 17.3.1 to 18.2.14
• Updates @angular/ssr from 17.3.1 to 18.2.21

Files not reviewed (1)

• frontend/package-lock.json: Language not supported

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[Copilot]

This upgrade introduces a breaking change by jumping from Angular 17.3.1 to 18.x for only two packages while leaving other Angular dependencies at 17.3.1. This creates version inconsistency that could lead to compatibility issues. Consider upgrading all Angular packages to the same major version or verify that this mixed-version approach is intentional and tested.