Fix Contact list modal broken in landscape mode

[GCyganek]

Explanation of Change

Fixes Contact list modal which is broken in landscape mode, also adjusts height when the keyboard is open. Adds a shared calculateModalHeightInLandscapeMode util (accounts for top safe-area inset and active keyboard height) and uses it in the Submit To popover and Emoji Picker (where there was a similar logic for modal height). Also hides the confirm button while the keyboard is active in landscape so that the input and list is visible while typing with open keyboard, and simplifies the landscape checks to no longer require isSmallScreenWidth.

Fixed Issues

$ #95096
PROPOSAL: N/A

Tests

Prerequisites: use Submit workspace

1. Switch deviceto landscape orientation.
2. Open a report that can be submitted and tap the submit button to open the Contact list modal.
3. Tap the search input to bring up the keyboard.
4. Verify the popover content shrinks to fit above the keyboard (does not get clipped or overflow the screen) .
5. Dismiss the keyboard and verify the confirm button reappears and the popover returns to its normal height.

• Verify that no errors appear in the JS console

Offline tests

N/A

QA Steps

Same as tests

• Verify that no errors appear in the JS console

PR Author Checklist

• I linked the correct issue in the ### Fixed Issues section above
• I wrote clear testing steps that cover the changes made in this PR
  • I added steps for local testing in the Tests section
  • I added steps for the expected offline behavior in the Offline steps section
  • I added steps for Staging and/or Production testing in the QA steps section
  • I added steps to cover failure scenarios (i.e. verify an input displays the correct error message if the entered data is not correct)
  • I turned off my network connection and tested it while offline to ensure it matches the expected behavior (i.e. verify the default avatar icon is displayed if app is offline)
  • I tested this PR with a High Traffic account against the staging or production API to ensure there are no regressions (e.g. long loading states that impact usability).
• I included screenshots or videos for tests on all platforms
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  • Android: Native
  • Android: mWeb Chrome
  • iOS: Native
  • iOS: mWeb Safari
  • MacOS: Chrome / Safari
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Screenshots/Videos

Android: Native

Screen.Recording.2026-07-22.at.16.23.08.mov

Android: mWeb Chrome

Screen.Recording.2026-07-22.at.16.35.41.mov

iOS: Native

Screen.Recording.2026-07-22.at.16.24.41.mov

iOS: mWeb Safari

Screen.Recording.2026-07-22.at.16.37.51.mov

MacOS: Chrome / Safari

Screen.Recording.2026-07-22.at.16.29.10.mov

[GCyganek]

@codex review

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Codex Review: Didn't find any major issues. 👍

Reviewed commit: d72affc684

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Reviewed commit: d72affc684

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[joekaufmanexpensify]

Good for product.