also adjust wix installer to new config format

dist/common/config.json

@@ -0,0 +1,3 @@
+{
+    "ignored": "This is the Cryptomator administrative configuration file. For more info, read the docs at https:\\docs.cryptomator.org. This entry can be removed."
+}

dist/common/config.properties

@@ -1,13 +0,0 @@
-# This is the Cryptomator administrative configuration file.
-# It is a simple key-value pair file.
-# Lines starting with '#' are comments and will be ignored.
-#
-# There are some shorthands for well known folders:
-# Substitution Key | Variable Value
-# @{appdir}        | The application installation directory.
-# @{appdata}       | %APPDATA% (Windows only).
-# @{localappdata}  | %LOCALAPPDATA% (Windows only).
-# @{userhome}      | The user's home directory.
-#
-# Example:
-# cryptomator.pluginDir=@{appdata}/Cryptomator/Plugins #Sets a plugin directory and enables plugin loading