v21.0.0 - Angular v21 updates & security updates. (#16)

* Version uptick and README updates.

* `ng update @angular/cli`

* `ng update @angular/material`

* `ng update angular-eslint`

* Final package updates.

v20.5.0

* Remove deprecated animations package and usage. Clean up.

* Running `ng update @angular/cli`

* Remaining package updates.

* Readme updates.

* Update dev dependencies.

* Update peer dependencies.

* Prettier formatting

* Update footer and scroll logic

* Address copilot feedback.

* Remove import decorator usage.

* Remove RxJs from peer deps

* Implement ngOnDestroy cleanup.

* Update RxJs package.

* Fix idle state styling. Reuse anim ms timing.

* Apply Copilot feedback

* Add copilot suggestions.

Update github package deploy (#13)

v20.4.0 - NPM OIDC

* README updates and version bump

* README updates

* Package updates: token > OIDC

* Quick readme update.

v20.3.5 - Quick readme and package updates. (#10)

* Update readme and packages (security updates).

* Update README.md

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

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Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Quick patch version tick.

v19.0.0 (#8)

* Upgrade to ng 19

* Update husky files.

* Readme updates

* Update github build to use node 20

Merge pull request #7 from ProAngular/ct/doc-updates

Updates to documenation to include demo