feat(github): Create a discussion template for app suggestion

.github/DISCUSSION_TEMPLATE/app-suggestion.yaml

@@ -0,0 +1,28 @@
+title: "[App Suggestion] "
+body:
+  - type: input
+    attributes:
+      label: "Application Link"
+      description: "Provide a link where this application can downloaded officially"
+  - type: checkboxes
+    attributes:
+      label: "Rules Checklist"
+      description: "You should agree with next rules"
+      options:
+        - label: "This application is popular enough, so is not considered as niche"
+          required: true
+        - label: "This application is not considered bloatware"
+          required: true
+        - label: "This application is free to access"
+          required: true
+        - label: "This application should be included on majority of fresh installed systems"
+          required: true
+        - label: "This application is present on WinGet (check winstall.app or do 'winget search your-app' in terminal)"
+          required: true
+  - type: checkboxes
+    attributes:
+      label: "Check for denied applications"
+      options:
+        - label: "Yes, I checked PRs, issues and discussions for existing suggestions and their result"
+          required: true
+

.github/ISSUE_TEMPLATE/config.yml

@@ -3,3 +3,6 @@ contact_links:
     - name: 💻 Community Discord
       url: https://discord.gg/RUbZUZyByQ
       about: Join our Community Discord server to chat with other users in the WinUtil community.
+    - name: Suggest an application
+      url: https://github.com/ChrisTitusTech/winutil/discussions/new?category=app-suggestion
+      about: If you want to suggest an application to be added, create a discussion with given template