add: feature suggestion template

.github/ISSUE_TEMPLATE/feature_suggestion.yml

@@ -0,0 +1,23 @@
+name: "Feature suggestion"
+description: Suggest a new feature to help the project improve.
+title: "feat: - <title>"
+labels: [
+  "enhancement"
+]
+body:
+  - type: textarea
+    id: description
+    attributes:
+      label: "Description"
+      description: Please provide a detailed description of your feature suggestion
+      placeholder: Please provide a detailed description of the feature you would like to suggest...
+    validations:
+      required: true
+  - type: checkboxes
+    id: terms
+    attributes:
+      label: Agreement
+      description: By creating this issue I made sure that ...
+      options:
+        - label: There is no issue already suggesting my feature.
+          required: true