server,app: Add support for resetting your password with email

Instead of just username

Fixes #267

app/src/components/reset_password_step1.rs

@@ -97,7 +97,7 @@ impl Component for ResetPasswordStep1Form {
                     class_valid="has-success"
                     form=&self.form
                     field_name="username"
-                    placeholder="Username"
+                    placeholder="Username or email"
                     autocomplete="username"
                     oninput=self.common.callback(|_| Msg::Update) />
                 </div>

app/src/infra/api.rs

@@ -268,7 +268,7 @@ impl HostService {
         callback: Callback<Result<()>>,
     ) -> Result<FetchTask> {
         call_server_empty_response_with_error_message(
-            &format!("/auth/reset/step1/{}", username),
+            &format!("/auth/reset/step1/{}", url_escape::encode_query(username)),
             yew::format::Nothing,
             callback,
             "Could not initiate password reset",