Revert "Add the profile, page icons to the page headers (#10046)"

[carlos-zamora]

This reverts commit a3a2a41.

#10046 causes a crash on save. MainPage::UpdateSettings() is unable to update the navigation view's selected item due to an "incorrect parameter". This is particularly strange to see because #10046 only modifies the navigation view's header, not the menu items themselves. Reverting this change fixes that crash (verified).

Reopens #9694

[zadjii-msft]

I'm fine reverting this, but I'd love to understand why. Presumably we'll need to do this eventually, right? Is there a particular item that it's selecting that causes this crash?

[carlos-zamora]

I'm fine reverting this, but I'd love to understand why. Presumably we'll need to do this eventually, right? Is there a particular item that it's selecting that causes this crash?

This would happen with the startup page, which was honestly like not affected at all by this. I'm assuming the same would happen with the profile page as well, but that's not verified.

[ghost]

Hello @carlos-zamora!

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[DHowett]

1 s/o for a revert