Update feature_request.md

Author: oobabooga

.github/ISSUE_TEMPLATE/feature_request.md

@@ -1,20 +1,16 @@
 ---
 name: Feature request
-about: Suggest an idea for this project
+about: Suggest an improvement or new feature for the web UI
 title: ''
 labels: ''
 assignees: ''
 
 ---
+- [ ] I have searched to see if a similar issue already exists.
 
-**Is your feature request related to a problem? Please describe.**
+
+**Is your feature request related to a problem? Please describe.**  
 A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
 
-**Describe the solution you'd like**
+**Describe the feature you'd like**  
 A clear and concise description of what you want to happen.
-
-**Describe alternatives you've considered**
-A clear and concise description of any alternative solutions or features you've considered.
-
-**Additional context**
-Add any other context or screenshots about the feature request here.