track "visit pricing" and "upgraded" event (#1662)

app/dashboard/views/pricing.py

@@ -80,8 +80,9 @@ def pricing():
 @dashboard_bp.route("/subscription_success")
 @login_required
 def subscription_success():
-    flash("Thanks so much for supporting SimpleLogin!", "success")
-    return redirect(url_for("dashboard.index"))
+    return render_template(
+        "dashboard/thank-you.html",
+    )
 
 
 @dashboard_bp.route("/coinbase_checkout")

templates/dashboard/pricing.html

@@ -210,5 +210,6 @@ to apply the coupon code.
       });
     }
 
+    plausible("visit pricing");
 </script>
 {% endblock %}

templates/dashboard/thank-you.html

@@ -0,0 +1,19 @@
+{% extends "single.html" %}
+
+{% set active_page = "dashboard" %}
+{% block title %}Thank you{% endblock %}
+{% block single_content %}
+
+  <div class="card">
+    <div class="card-body">
+      <h1 class="h3">Thanks so much for supporting SimpleLogin!</h1>
+      <p>
+        SimpleLogin is 100% funded by the community.
+        We do not use your data, track you or show you ads.
+      </p>
+      <p>Thanks to your support, we can keep the service running and develop new features.</p>
+      <a class="btn btn-primary" href="/">Close</a>
+    </div>
+  </div>
+  <script>plausible("upgraded")</script>
+{% endblock %}