#2705 Fix UI elements to be compatible with iOS 26

[ioanatflowcrypt]

This PR fixed UI elements to be compatible with iOS 26

close #2705 // if this PR closes an issue

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Tests (delete all except exactly one):

• Does not need tests (refactor only, docs or internal changes)

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To be filled by reviewers

I have reviewed that this PR... (tick whichever items you personally focused on during this review):

• addresses the issue it closes (if any)
• code is readable and understandable
• is accompanied with tests, or tests are not needed
• is free of vulnerabilities
• is documented clearly and usefully, or doesn't need documentation

[ioanatflowcrypt]

@sosnovsky I've removed nav bar background as mentioned in doc.

Also as mentioned in WWDC

"On iPhone, the search bar moves automatically to the toolbar... If you already have a toolbar, include a searchBarPlacementBarButtonItem along with other bar buttons."

Please check

[sosnovsky]

looks better now, just a few minor issues:

• screen titles are not visible (on settings screens too)
• menu button icon is not centered

ios 18

ios 26

[ioanatflowcrypt]

Fixed. Please check

[sosnovsky]

looks great now, well done 👍