resolved @benjdlambert comments

Signed-off-by: Luka Siric <siric.luka@gmail.com>

.changeset/fast-paws-press.md

@@ -1,6 +1,5 @@
 ---
 '@backstage/cli': patch
-'@backstage/core-app-api': minor
 ---
 
 Added support for custom certificate for webpack dev server.

packages/cli/config.d.ts

@@ -1,40 +0,0 @@
-/*
- * Copyright 2022 The Backstage Authors
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-export interface Config {
-  app: {
-    /**
-     * Running the frontend app with https
-     */
-    https?: {
-      /**
-       * Parent object containing certificate and the private key
-       */
-      certificate?: {
-        /**
-         * Https Certificate private key. Use $file to load in a file
-         * @visibility secret
-         */
-        key: string;
-        /**
-         * Https Certificate. Use $file to load in a file
-         * @visibility secret
-         */
-        cert: string;
-      };
-    };
-  };
-}

packages/cli/package.json

@@ -248,6 +248,29 @@
                 "description": "The port that the frontend should be bound to. Only used for local development."
               }
             }
+          },
+          "https": {
+            "type": "object",
+            "description": "Running the frontend app with https",
+            "properties": {
+              "certificate": {
+                "type": "object",
+                "description": "Parent object containing certificate and the private key",
+                "required": ["key", "cert"],
+                "properties" : {
+                  "key": {
+                    "type" : "string",
+                    "visibility": "secret",
+                    "description": "Https Certificate private key. Use $file to load in a file"
+                  },
+                  "cert": {
+                    "type" : "string",
+                    "visibility": "secret",
+                    "description": "Https Certificate. Use $file to load in a file"
+                  }
+                }
+              }
+            }
           }
         }
       }