Merge branch '5.4' into 6.0

* 5.4:
  Add missing information about tsconfig.json

Author: javiereguiluz

frontend/encore/typescript.rst

@@ -20,6 +20,10 @@ Want to use `TypeScript`_? No problem! First, enable it:
     +     //.enableForkedTypeScriptTypesChecking()
       ;
 
+Then create an empty ``tsconfig.json`` file with the contents ``{}`` in the project
+root folder (or in the folder where your TypeScript files are located; e.g. ``assets/``).
+In ``tsconfig.json`` you can define more options, as shown in `tsconfig.json reference`_.
+
 Then restart Encore. When you do, it will give you a command you can run to
 install any missing dependencies. After running that command and restarting
 Encore, you're done!