Support multiple solutions

[roxblnfk]

• Render multiple solutions in UI
• Add Solution Provider Registry like this:

  interface SolutionProviderRegisrty {
     /**
      * @param callable(\Throwable): SolutionInterface|\Stringable|string $provider
      */
     public function register($provider): void;
  }
  // todo
  interface SolutionInterface {}
  

• https://github.com/yiisoft/error-handler/issues/104 might be implemented like a SolutionProvider

In this case the user can implement its own AI based solution provider, support custom attributes or interfaces

[vjik]

The interface should probably also provide information about which exceptions it is suitable for.