docs-bug: Remove reference to depricated project angular/flex-layout

[mattseymour]

Documentation Feedback

Within the FAQ.md (https://github.com/angular/components/blob/main/FAQ.md) file, under the section "Why doesn't this repository provide support for application layouts?" there is reference to use the now defunct and unsupported package angular/flex-layout.

For an Angular-oriented layout library, angular/flex-layout is a community-maintained project under the Angular umbrella

This project is no longer supported and should not be used.

The project readme states:

NOTE: The Angular team no longer publishes new releases of this project. Please review this blog post for alternatives, and this article for the explanation and next steps.

Also NPM has the following error and angular 16 is not supported.

npm WARN deprecated @angular/flex-layout@15.0.0-beta.42: This package has been deprecated. Please see https://blog.angular.io/modern-css-in-angular-layouts-4a259dca9127

The logical thing to do would be to remove references to this this project in the FAQ.

Affected documentation page

https://github.com/angular/components/blob/main/FAQ.md

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