fix(core): set windowsHide: true on all child process spawns - #34894

Changed pages include:

• concepts/index.html - view
• enterprise/index.html - view
• extending-nx/index.html - view
• features/index.html - view
• getting-started/index.html - view
• guides/index.html - view
• how-nx-works/index.html - view
• knowledge-base/index.html - view
• platform-features/index.html - view
• plugin-registry/index.html - view

There are more changes not included in the list