fix: React StrictMode breaking Inertia Head

[jordanhavard]

This PR addresses an issue where the page title would temporarily disappear when using React's Strict Mode, which caused components to mount/unmount/remount during development.
The issue occurred because the provider was being disconnected during Strict Mode's temporary unmount phase. We've fixed this by:

1. Adding a reconnect() function to the head manager that allows providers to be restored
2. Calling reconnect() in the component's effect
3. Updating the dependency array to include the children prop, ensuring content updates properly

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Fixes #2253

[pascalbaljet]

Thanks!