Bugfix/Gemini Structured Output (#4713)

* fix gemini structured output

* update issues templates

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -1,6 +1,6 @@
 name: Bug Report
 description: File a bug report to help us improve
-title: '[BUG] '
+title: ''
 labels: ['bug']
 assignees: []
 body:

.github/ISSUE_TEMPLATE/feature_request.yml

@@ -1,6 +1,6 @@
 name: Feature Request
 description: Suggest a new feature or enhancement for Flowise
-title: '[FEATURE] '
+title: ''
 labels: ['enhancement']
 assignees: []
 body: