Update samples to 0.74 (#937)

## Description
Upgrade Calculator, CalculatorNuget and NativeModule samples to 0.74 as
part of 0.74 release.

### Why

Part of microsoft/react-native-windows#12874

## Screenshots
N/A
###### Microsoft Reviewers: [Open in
CodeFlow](https://microsoft.github.io/open-pr/?codeflow=https://github.com/microsoft/react-native-windows-samples/pull/937)

---------

Co-authored-by: Chris Glein <[email protected]>

Author: Yajur-Grover

samples/Calculator/cppwinrt/.gitignore

@@ -20,7 +20,7 @@ DerivedData
 *.hmap
 *.ipa
 *.xcuserstate
-ios/.xcode.env.local
+**/.xcode.env.local
 
 # Android/IntelliJ
 #
@@ -56,11 +56,19 @@ yarn-error.log
 *.jsbundle
 
 # Ruby / CocoaPods
-/ios/Pods/
+**/Pods/
 /vendor/bundle/
 
 # Temporary files created by Metro to check the health of the file watcher
 .metro-health-check*
 
 # testing
 /coverage
+
+# Yarn
+.yarn/*
+!.yarn/patches
+!.yarn/plugins
+!.yarn/releases
+!.yarn/sdks
+!.yarn/versions