[BUG] Clicking on a rule should open a flyout in View and Edit detector flows

[kamingleung]

What is the bug?
On the View detector page, when a user clicks on a rule, it should open a flyout with the rule details. This flyout should contain the same rule information and as the rule flyout in the Rule editor. Similar to #212

How can one reproduce the bug?
Steps to reproduce the behavior:
For View detector page:

1. Go to 'Detectors'
2. Click on any existing detectors
3. Under 'Detector rules'
4. Click on any rule links
5. The links are not doing anything

For edit detector rules page:

1. From the same page above, click on 'Edit detector rules'
2. Click on any rule links
3. The links are not doing anything
   

What is the expected behavior?
When a user clicks on a rule link, it should open a flyout on the same page. The flyout should contain the rule details.

[djindjic]

@kamingleung @amsiglan

1. edit detector rules page is already done in this PR Rule details flyout on create rule page #236 (that's the same component shared on create detector flow)
2. I will add support for rule details flyout on detector page view mode

[djindjic]

In order to fix missing detection yaml data in context of this PR we have also migrate rules fetching to RulesViewModelActor on:

1. Create detector flow 1st and 4th step
2. Detector view page
3. Update detector rules

See PR for more details and recordings.