feat: adds flash message

app/templates/message.html

@@ -0,0 +1,7 @@
+{% with messages = get_flashed_messages() %}
+{% if messages %}
+  <div class="alert alert-{{messages[0].alertType}} mb-4" role="alert">
+      <p class="mb-0">{{ messages[0].message }}</p>
+  </div>
+{% endif %}
+{% endwith %}

app/utils/alert_type.py

@@ -0,0 +1,11 @@
+from enum import Enum
+
+class AlertType(Enum):
+  PRIMARY="primary"
+  SECONDARY="secondary"
+  SUCCESS="success"
+  DANGER="danger"
+  WARNING="warning"
+  INFO="info"
+  LIGHT="light"
+  DARK="dark"

app/utils/flash_message.py

@@ -0,0 +1,4 @@
+class FlashMessage:
+  def __init__(self, message, alertType):
+    self.message = message
+    self.alertType = alertType