user can update note in alias list page

app/dashboard/templates/dashboard/index.html

@@ -151,6 +151,28 @@
             </a>
           </div>
 
+          <form method="post">
+            <div class="row mt-2">
+
+              <div class="col-10">
+                <textarea
+                    name="note"
+                    class="form-control"
+                    rows="2"
+                    placeholder="Alias Note.">{{ gen_email.note or "" }}</textarea>
+              </div>
+
+              <div class="col-2">
+                <input type="hidden" name="form-name" value="set-note">
+                <input type="hidden" name="gen-email-id" value="{{ gen_email.id }}">
+
+                <button class="btn btn-sm btn-outline-success">
+                  Save
+                </button>
+              </div>
+            </div>
+          </form>
+
           <div class="row mt-3">
             <div class="col">
               {% if gen_email.enabled %}

app/dashboard/views/index.py

@@ -124,6 +124,21 @@ def index():
                 LOG.error("alias %s has been added before to DeletedAlias", email)
                 db.session.rollback()
 
+        elif request.form.get("form-name") == "set-note":
+            gen_email_id = request.form.get("gen-email-id")
+            gen_email: GenEmail = GenEmail.get(gen_email_id)
+            note = request.form.get("note")
+
+            gen_email.note = note
+            db.session.commit()
+
+            flash(f"Update note for alias {gen_email.email}", "success")
+            return redirect(
+                url_for(
+                    "dashboard.index", highlight_gen_email_id=gen_email.id, query=query
+                )
+            )
+
         return redirect(url_for("dashboard.index", query=query))
 
     client_users = (