Dependencies + Next.js 15.2.0 (#193)

- Updated All dependencies
- Updated Next.js 15.2.0
- Updated Stripe API version
- Remove Sentry replayIntegration by default
- Added IMPROVEMENT.yml file
- Bump version to 2.5.1

.github/ISSUE_TEMPLATE/ENHANCEMENT.YML

@@ -0,0 +1,15 @@
+name: "Enhancement"
+description: Create a new ticket for an improvement.
+title: "🚀 [ENHANCEMENT] - <title>"
+labels: [
+  "enhancement"
+]
+body:
+  - type: textarea
+    id: description
+    attributes:
+      label: "Description"
+      description: Please enter an explicit description of your improvement
+      placeholder: Short and explicit description of your improvement...
+    validations:
+      required: true