PIM-2705 Splitted the product edit action

| Q                   | A
| ------------------- | ---
| Bug fix?            | No
| New feature?        | No
| BC breaks?          | Yes
| Tests pass?         | Yes
| Scenarios pass?     | Probably not
| Checkstyle issues?  | Maybe
| Changelog updated?  | Nope
| Fixed tickets       | PIM-2705
| Doc PR              |