Add fullscreen-trigger-for directive

[ivan-mitric]

Description

Adding a fullscreen directive.

Fixes #85

Type of change

• New feature (non-breaking change which adds functionality)

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes

[nx-cloud]

☁️ Nx Cloud Report

CI is running/has finished running commands for commit ca924ac. As they complete they will appear below. Click to see the status, the terminal output, and the build insights.

📂 See all runs for this branch

---

✅ Successfully ran 2 targets

• nx affected --target=test --parallel --max-parallel=2
• nx affected --target=lint --parallel --max-parallel=2

---

Sent with 💌 from NxCloud.

[fvoska]

Can you please write some tests? e.g. test that requestFullscreen is called on the correct target element.

[fvoska]

I think we can use a standalone directive, would get rid of the module file