Resolve "Reduce code duplication Alert / Incident Management"

What does this MR do?

A not so tiny MVC for #232798 (closed)

This merge is designed to reduce the ~"technical debt" shared between:

• Alert Management
• Incident Management
• Error Tracking(Coming soon)

through the abstraction of the common logic into a wrapper component i.e. a generic page layout component(page_wrapper.vue) that should allow for a:

• Page Title
• Set of filter tabs/item count badges
• Token filtering bar(author, assignee, raw search, configurable)
• Table of items
• Pagination

This wrapper abstracts away much of the boiler plate, emitting up events to the actual page to allow it to handle any page specific logic i.e. API / GraphQL calls.

Merge	You are here
Create wrapper and reduce duplication between ~"Category:Alert Management" and Category:Incident Management	🤘
Align Category:Error Tracking	TBA
Refine page payout to provide more options	TBA
Abstract table component into generic component with preloaded styles to further reduce duplication	TBA

In this merge we also:

• Allow ~"Category:Alert Management" to implement the same token based filtering as Category:Incident Management though using a slightly different configuration set.
• Adds base rspec profiling in the way of ~"Category:Alert Management" and Category:Incident Management feature specs
• Adds page tracking via snowplow by default

Screenshots

Alerts	Incidents

Database queries

SELECT "alert_management_alerts".* 
FROM   "alert_management_alerts" 
       INNER JOIN "alert_management_alert_assignees" 
               ON "alert_management_alert_assignees"."alert_id" = 
                  "alert_management_alerts"."id" 
       INNER JOIN "users" 
               ON "users"."id" = "alert_management_alert_assignees"."user_id" 
WHERE  "alert_management_alerts"."project_id" = 1 
       AND ( Lower("users"."username") IN ( Lower('caneldem') ) ) 

Plan: https://explain.depesz.com/s/peYb

Does this MR meet the acceptance criteria?

Conformity

• Changelog entry
• [-] Documentation (if required)
• [-] Code review guidelines
• [-] Merge request performance guidelines
• [-] Style guides
• [-] Database guides
• [-] Separation of EE specific content

Availability and Testing

• Review and add/update tests for this feature/bug. Consider all test levels. See the Test Planning Process.
• Tested in all supported browsers
• [-] Informed Infrastructure department of a default or new setting change, if applicable per definition of done

Security

If this MR contains changes to processing or storing of credentials or tokens, authorization and authentication methods and other items described in the security review guidelines:

• [-] Label as security and @ mention @gitlab-com/gl-security/appsec
• [-] The MR includes necessary changes to maintain consistency between UI, API, email, or other methods
• [-] Security reports checked/validated by a reviewer from the AppSec team

Closes #232798 (closed)