Adding Evaluate button for alerts to test them

[ezraodio1]

What type of PR is this?

• [ ] Refactor
• [x] Feature
• [ ] Bug Fix
• [ ] New Query Runner (Data Source)
• [ ] New Alert Destination
• [ ] Other

Description

Adding new button to evaluate an alert and test its condition. This button allows users to verify that the alert they created works how they intended it to. This PR is related to https://github.com/getredash/redash/discussions/7024.

How is this tested?

• [x] Unit tests (pytest, jest)
• [ ] E2E Tests (Cypress)
• [ ] Manually
• [ ] N/A

Related Tickets & Documents

(https://github.com/getredash/redash/discussions/7024)

Mobile & Desktop Screenshots/Recordings (if there are UI changes)

https://github.com/getredash/redash/assets/97199317/d1677b80-c249-4e11-aaa3-f19f61715bc4