docs(configuration): clarify devtool disabling (#7149)

Author: rikhuijzer

src/content/configuration/devtool.mdx

@@ -125,7 +125,7 @@ The following options are not ideal for development nor production. They are nee
 
 These options are typically used in production:
 
-`(none)` (Omit the `devtool` option) - No SourceMap is emitted. This is a good option to start with.
+`(none)` (Omit the `devtool` option or set `devtool: false`) - No SourceMap is emitted. This is a good option to start with.
 
 `source-map` - A full SourceMap is emitted as a separate file. It adds a reference comment to the bundle so development tools know where to find it.