Allow firestore-counter to run on the emulator

[KenCorbettJr]

When running firestore-counter locally and the counter is first starting there are not always workers in the controllerData. This update prevents an error in this case and allows the counter to start and function normally.

This is the error I was getting:

After this update, I no longer get this error.

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[dackers86]

Hi @KenCorbettJr

Thanks for the PR! It appears that the validator has an option with optional null values.

This may require an additional update, I've to our review column for any suggestions / future updates.

[KenCorbettJr]

Ahh yes. I see. I fixed it to do the check again but without option chaining.

[KenCorbettJr]

@dackers86 could you approve this pull request again?

[KenCorbettJr]

What do I need to get this merged? It looks like I still need approval from @dackers86 but I already got approval.

[pavelgj]

I changed the base of this PR -- all new changes need to go into next.

[dackers86]

Hi @KenCorbettJr

Apologies for the delay on this one, there are some conflicts and files changed unrelated to the PR.

We are currently looking into adding a better testing environment for this Extension.

We'll look to patch up and add this PR with the testing environment for the next release.