fix: MaterialOutlinedComboBox content shift

[Kunal22shah]

GitHub Issue: #1500

PR Type

What kind of change does this PR introduce?

• Bugfix
• Feature
• Code style update (formatting)
• Refactoring (no functional changes, no api changes)
• Build or CI related changes
• Documentation content changes
• Other... Please describe:

Description

PR Checklist

Please check if your PR fulfills the following requirements:

• Commits must be following the Conventional Commits specification
• Tested the changes where applicable:
  • UWP
  • iOS
  • Android
  • WASM
  • MacOS
• Updated the documentation as needed:
  • General Doc Update
  • material-controls-styles.md
  • cupertino-controls-styles.md
  • lightweight-styling.md (LightWeight Styling Resource Keys)
• Contains No breaking changes

  If the pull request contains breaking changes, commit message must contain a detailed description of the action to take for the consumer of this library. As explained by the Conventional Commits specification

Other information

Internal Issue (If applicable):

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