chore: Use tsconfig base. (#433)

test/configs/Util.ts

@@ -200,7 +200,8 @@ export const instantiateFromConfig = async(componentUrl: string, configFile: str
  * Initializes the root container of the server.
  * Useful for when the RootContainerInitializer was not instantiated.
  */
-export const initServerStore = async(server: Server, baseUrl: string, headers: HeadersInit = {}): Promise<void> => {
+export const initServerStore = async(server: Server, baseUrl: string,
+  headers: Record<string, string> = {}): Promise<void> => {
   const res = await fetch(baseUrl, {
     method: 'PUT',
     headers: {

test/tsconfig.json

@@ -1,10 +1,6 @@
 {
-  "compilerOptions": {
-    "module": "commonjs",
-    "target": "es2017",
-    "esModuleInterop": true,
-    "incremental": true,
-    "noUnusedLocals": true,
-    "strict": true
-  }
+  "extends": "../tsconfig.json",
+  "include": [
+    "."
+  ]
 }