feat(useEventListener): accept multiple events or listeners

[vaakian]

Description

Allow useEventListener to accept array of events or listeners so that we could:

• add multiple listeners to a single event
• add a single listener to multiple events

It looks like:

// multi event
useEventListener(
  ['scroll', 'click', 'resize', 'blur'],
  handler,
)

// multi handler
useEventListener(
  'scroll' ,
  [handler1, handler2, handler3],
)

// multi event & multi handler
useEventListener(
  ['scroll', 'click', 'resize', 'blur'], 
  [handler1, handler2, handler3],
)

Additional context

This change is incremental, fully compatible with previous usage.

---

What is the purpose of this pull request?

• Bug fix
• New Feature
• Documentation update
• Other

Before submitting the PR, please make sure you do the following

• Read the Contributing Guidelines.
• Read the Pull Request Guidelines.
• Check that there isn't already a PR that solves the problem the same way to avoid creating a duplicate.
• Provide a description in this PR that addresses what the PR is solving, or reference the issue that it solves (e.g. fixes #123).
• Ideally, include relevant tests that fail without this PR but pass with it.

[vaakian]

The idea comes from my previous PR #2151

• https://github.com/vaakian/vueuse/blob/4f5eb6996a02912d8cf8d6d6eb165837a2d5091b/packages/core/useContextMenu/index.ts#L211

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[sxzz]

I don't think this feature is essential.

[antfu]

r