Fix loading results in second opened view

When results were already cached in memory and the view requested the
result, it would not be loaded because the event would not be fired.
This fires the event when the result is loaded from cache as well, to
ensure that the view always receives the result.

Author: koesie10

extensions/ql-vscode/src/remote-queries/variant-analysis-results-manager.ts

@@ -121,6 +121,7 @@ export class VariantAnalysisResultsManager extends DisposableObject {
       createCacheKey(variantAnalysisId, repositoryFullName),
     );
     if (result) {
+      this._onResultLoaded.fire(result);
       return result;
     }