[REQUEST] Use ActiveJob (With Sidekiq) instead of Sidekiq directly

[arielj]

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Before we start...:

• [x] I checked the documentation and didn't find this feature
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Branch/Commit:

Main branch.

Describe the feature:

Using ActiveJob would make development easier, we can setup an inline processor for development and sidekiq for production. That way we won't depend on redis and sidekiq locally, making the setup easier.

Problem:

Currently, we have to setup redis and sidekiq and run them manually in separated processes to do the syncing.

Resources:

https://edgeguides.rubyonrails.org/active_job_basics.html#backends

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