feat: adds a global modifier to the directive

[lucasnbsb]

Adds a prop to the directive that causes the listener to be set in the document element

closes #35

PR Checklist

Please check if your PR fulfills the following requirements:

• The commit message follows our guidelines: CONTRIBUTING.md#commit
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

PR Type

What kind of change does this PR introduce?

[ ] Bugfix
[X] Feature
[ ] Code style update (formatting, local variables)
[ ] Refactoring (no functional changes, no api changes)
[ ] Build related changes
[ ] CI related changes
[ ] Documentation content changes
[ ] Other... Please describe:

What is the current behavior?

The directive only fires the hotkey event when it's host element is active

Issue Number: #35

What is the new behavior?

A new isGlobal prop in the directive causes the hotkey event to be fired whenever it's allowed

Does this PR introduce a breaking change?

[ ] Yes
[X] No

Other information

[stackblitz]

Run & review this pull request in StackBlitz Codeflow.

[lucasnbsb]

Hi @NetanelBasal, i saw this old issue that aligned with the expectation i had when first using the directive and decided to give it a shot.

The solution was to add a prop that makes the listener be set in the Document, the lifecycle of the hotkey is still tied to the directive, so it goes away with the host element