docs: security.md mark 'Enable process sandboxing' as active by defau… (#48647)

* docs: security.md mark 'Enable process sandboxing' as active by default since electron 20

Co-authored-by: LeUser111 <florian.wiedenmann@grob.de>

* Adjusted according to feedback

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* Updated according to feedback - adjusted sandbox.md

Co-authored-by: LeUser111 <florian.wiedenmann@grob.de>

* formatting

Co-authored-by: LeUser111 <florian.wiedenmann@grob.de>

* Fixed broken markup

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* Implemented docs linting suggestions

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* docs: docs/tutorial/sandbox.md - fixed typo

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* docs: web-preferences.md - sandbox: mention default value and relation to nodeIntegration

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Co-authored-by: LeUser111 <florian.wiedenmann@grob.de>
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docs/api/structures/web-preferences.md

@@ -21,7 +21,9 @@
   associated with the window, making it compatible with the Chromium
   OS-level sandbox and disabling the Node.js engine. This is not the same as
   the `nodeIntegration` option and the APIs available to the preload script
-  are more limited. Read more about the option [here](../../tutorial/sandbox.md).
+  are more limited. Default is `true` since Electron 20. The sandbox will
+  automatically be disabled when `nodeIntegration` is set to `true`.
+  Read more about the option [here](../../tutorial/sandbox.md).
 * `session` [Session](../session.md#class-session) (optional) - Sets the session used by the
   page. Instead of passing the Session object directly, you can also choose to
   use the `partition` option instead, which accepts a partition string. When