Removed separate MinHeight resources for text based controls

[dipeshmsft]

Description

This PR reverts a workaround that I had to introduce while fixing the layout of text controls ( DatePicker, TextBox, RichTextBox, PasswordBox, etc ). These all controls use a shared resource TextControlThemeMinHeight, which needed to be changed from 24 to 32. However, in each PR I only fixed a single style, I had to introduce individual resources for these controls at the time.

In this PR, I remove the extra resources and their references are replaced with TextControlThemeMinHeight resource.

Customer Impact

Anyone modifying this resource will see the uniform behavior for all text based controls.

Regression

N/A

Testing

Local app testing

Risk

Minimal. Minor issues in content alignment may come up.

Microsoft Reviewers: Open in CodeFlow

[Copilot]

Pull Request Overview

This PR consolidates the minimum height values for text-based controls by removing separate control-specific MinHeight resources and standardizing them to use a unified TextControlThemeMinHeight value of 32. The changes eliminate redundant resource definitions and ensure consistent sizing across different text input controls while improving maintainability through centralized resource management.

• Unified MinHeight resource consolidation from separate control-specific values to a single TextControlThemeMinHeight
• Updated the base TextControlThemeMinHeight value from 24 to 32 across all theme files
• Improved vertical content alignment for ComboBox controls from "Top" to "Center"

Reviewed Changes

Copilot reviewed 10 out of 10 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
Fluent.xaml	Updates central theme with unified MinHeight resources and removes deprecated control-specific MinHeight values
Fluent.Light.xaml	Applies same consolidation changes for light theme variant
Fluent.Dark.xaml	Applies same consolidation changes for dark theme variant
Fluent.HC.xaml	Applies same consolidation changes for high contrast theme variant
TextBox.xaml	Removes deprecated TextBoxThemeMinHeight resource and updates references
RichTextBox.xaml	Removes deprecated RichTextBoxThemeMinHeight resource and updates references
PasswordBox.xaml	Removes deprecated PasswordBoxThemeMinHeight resource and updates references
DatePicker.xaml	Adds MinHeight property and updates template binding for consistent sizing
ComboBox.xaml	Updates MinHeight reference and improves vertical content alignment
Variables.xaml	Updates base TextControlThemeMinHeight value from 24 to 32

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 13.51885%. Comparing base (900946a) to head (5d2d3b3).

Additional details and impacted files

@@                 Coverage Diff                 @@
##                main      #10980         +/-   ##
===================================================
+ Coverage   13.36769%   13.51885%   +0.15116%     
===================================================
  Files           3319        3319                 
  Lines         664894      664894                 
  Branches       74674       74674                 
===================================================
+ Hits           88881       89886       +1005     
+ Misses        573472      572462       -1010     
- Partials        2541        2546          +5     

Flag	Coverage Δ
Debug	13.51885% <ø> (+0.15116%)	⬆️

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