Fixes leave on the server and reworked login flow.

backend-actix/gamenight-api.yaml

@@ -26,6 +26,19 @@ paths:
         $ref: '#/components/requestBodies/LoginRequest'
       description: Submit your credentials to get a JWT-token to use with the rest of the api.
       parameters: []
+    post:
+      summary: ''
+      operationId: post-token
+      responses:
+        '200':
+          $ref: '#/components/responses/TokenResponse'
+        '401':
+          $ref: '#/components/responses/FailureResponse'
+      description: Refresh your JWT-token without logging in again.
+      parameters: []
+      security:
+        - JWT-Auth: []
+      
   /user:
     post:
       summary: ''