[StyleCleanUp] Addressing SA warnings Part 1 (#10119)

* Update: Resolve SA1408 in src

* Update: Resolve SA1404 in src

* Update: Resolve SA1131 in src

* Update src/Microsoft.DotNet.Wpf/src/System.Xaml/System/Xaml/Context/ObjectWriterContext.cs

Co-authored-by: h3xds1nz <[email protected]>

---------

Co-authored-by: h3xds1nz <[email protected]>

Author: harshit7962

src/Microsoft.DotNet.Wpf/src/.editorconfig

@@ -317,21 +317,12 @@ dotnet_diagnostic.SA1121.severity = suggestion
 # SA1129: Do not use default value type constructor
 dotnet_diagnostic.SA1129.severity = suggestion
 
-# SA1131: Constant values should appear on the right-hand side of comparisons
-dotnet_diagnostic.SA1131.severity = suggestion
-
 # SA1206: Keyword ordering
 dotnet_diagnostic.SA1206.severity = suggestion
 
 # SA1400: Member should declare an access modifier
 dotnet_diagnostic.SA1400.severity = suggestion
 
-# SA1404: Code analysis suppression should have justification
-dotnet_diagnostic.SA1404.severity = suggestion
-
-# SA1408: Conditional expressions should declare precedence
-dotnet_diagnostic.SA1408.severity = suggestion
-
 # SA1500: Braces for multi-line statements should not share line
 dotnet_diagnostic.SA1500.severity = suggestion