feat: Add display mode handling logic

[FrogTheFrog]

Description

Add display mode handling logic. Also increased precision to double.

Type of Change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Dependency update (updates to dependencies)
• Documentation update (changes to documentation)
• Repository update (changes to repository files, e.g. .github/...)

Checklist

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have added or updated the in code docstring/documentation-blocks for new or existing methods/components

Branch Updates

LizardByte requires that branches be up-to-date before merging. This means that after any PR is merged, this branch
must be updated before it can be merged. You must also
Allow edits from maintainers.

• I want maintainers to keep my branch updated

[codecov]

Codecov Report

Attention: Patch coverage is 98.64865% with 1 line in your changes missing coverage. Please review.

Project coverage is 93.96%. Comparing base (2dcf5f7) to head (733a491).

Additional details and impacted files

@@            Coverage Diff             @@
##           master      #53      +/-   ##
==========================================
+ Coverage   93.74%   93.96%   +0.22%     
==========================================
  Files          33       33              
  Lines        1519     1575      +56     
  Branches      853      883      +30     
==========================================
+ Hits         1424     1480      +56     
  Misses         46       46              
  Partials       49       49              

Flag	Coverage Δ
Linux	96.77% <100.00%> (ø)
Windows	93.94% <98.59%> (+0.22%)	⬆️
macOS	71.51% <100.00%> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Files	Coverage Δ
...n/include/displaydevice/settingsmanagerinterface.h	100.00% <ø> (ø)
src/common/include/displaydevice/types.h	95.23% <100.00%> (ø)
src/common/types.cpp	100.00% <100.00%> (ø)
...clude/displaydevice/windows/winapilayerinterface.h	100.00% <ø> (ø)
src/windows/settingsmanagerapply.cpp	98.75% <100.00%> (+0.38%)	⬆️
src/windows/types.cpp	100.00% <100.00%> (ø)
src/windows/winapilayer.cpp	78.13% <100.00%> (ø)
src/windows/winapiutils.cpp	99.53% <100.00%> (ø)
src/windows/windisplaydevicegeneral.cpp	100.00% <100.00%> (ø)
src/windows/settingsutils.cpp	95.48% <94.73%> (+0.44%)	⬆️