Added clarification that actors always need actorStateStore property set on state component

[WhitWaldo]

Thank you for helping make the Dapr documentation better!

Please follow this checklist before submitting:

• Commits are signed with Developer Certificate of Origin (DCO - learn more)
• Read the contribution guide
• Commands include options for Linux, MacOS, and Windows within codetabs
• New file and folder names are globally unique
• Page references use shortcodes instead of markdown or URL links
• Images use HTML style and have alternative text
• Places where multiple code/command options are given have codetabs

In addition, please fill out the following to help reviewers understand this pull request:

Description

There was a concern raised in Discord that the documentation wasn't as clear as it could be that a state store was required for actors regardless of whether any state was actually stored. This is a minor tweak to the documentation that reflects this requirement.

Issue reference

N/A

[github-actions]

Stale PR, paging all reviewers

[yaron2]

@hhunter-ms @msfussell

[msfussell]

LGTM