Show workflow parse error in description

Signed-off-by: Sanjula Ganepola <sanjulagane@gmail.com>

src/views/workflows/workflow.ts

@@ -17,6 +17,7 @@ export default class WorkflowTreeItem extends TreeItem implements GithubLocalAct
             (workflow.error ? `Error: ${workflow.error}` : ``);
 
         if (workflow.error) {
+            this.description = workflow.error;
             this.resourceUri = Uri.parse(`${WorkflowTreeItem.contextValue}:${workflow.name}?error=${workflow.error}`, true);
         }
     }

src/workflowsManager.ts

@@ -38,7 +38,7 @@ export class WorkflowsManager {
         workflows.push({
           name: (yamlContent ? yamlContent.name : undefined) || path.parse(workflowFileUri.fsPath).name,
           uri: workflowFileUri,
-          error: 'Failed to parse workflow file.'
+          error: 'Failed to parse workflow'
         });
       }
     }