Update method description and error message for parentViewContoller

Author: Swasti Gupta

MSAL/src/MSIDInteractiveRequestParameters+MSALRequest.m

@@ -55,7 +55,7 @@ - (BOOL)fillWithWebViewParameters:(MSALWebviewParameters *)webParameters
 
     if (parentViewController.view.window == nil)
     {
-        NSError *msidError = MSIDCreateError(MSIDErrorDomain, MSIDErrorInvalidDeveloperParameter, @"parentViewController has no window! Provide a valid controller with view and window.", nil, nil, nil, nil, nil, YES);
+        NSError *msidError = MSIDCreateError(MSIDErrorDomain, MSIDErrorInvalidDeveloperParameter, @"parentViewController has no window! Provide a valid controller with its view attached to a valid window.", nil, nil, nil, nil, nil, YES);
         if (error) *error = msidError;
         return NO;
     }

MSAL/src/public/MSALWebviewParameters.h

@@ -44,8 +44,8 @@ NS_ASSUME_NONNULL_BEGIN
 #pragma mark - Configuration options
 
 /**
- The view controller to present from. This property must be valid. If nil is provided, or if the view controller is not attached to a window (i.e., parentViewController.view.window is nil), MSAL will return an error and will not proceed with authentication.
- It is required to provide a valid parentViewController with a window to proceed with authentication.
+ The view controller to present from. If nil is provided, or if the view controller's view is not attached to a window (i.e., parentViewController.view.window is nil), MSAL will return an error and will not proceed with authentication.
+ A valid parentViewController with its view attached to a valid window is required to proceed with authentication.
  */
 @property (nonatomic, strong, nonnull) MSALViewController *parentViewController;
 
@@ -82,9 +82,9 @@ NS_ASSUME_NONNULL_BEGIN
 #pragma mark - Constructing MSALWebviewParameters
 
 /**
-   Creates an instance of MSALWebviewParameters with a provided parentViewController.
-   @param parentViewController The view controller to present authorization UI from. This property must be valid
-   @note parentViewController is mandatory on iOS 13+  and macOS 10.15+. If nil is provided, or if the view controller is not attached to a window (i.e., parentViewController.view.window is nil), MSAL will return an error and authentication will not proceed. It is required to provide a valid parentViewController with a window to proceed with authentication.
+   Creates an instance of MSALWebviewParameters with the provided parentViewController.
+   @param parentViewController The view controller to present authorization UI from.
+   @note parentViewController is mandatory on iOS 13+  and macOS 10.15+. If nil is provided, or if the view controller's view is not attached to a window (i.e., parentViewController.view.window is nil), MSAL will return an error and authentication will not proceed. A valid parentViewController with its view attached to a valid window is required to proceed with authentication.
 */
 - (nonnull instancetype)initWithAuthPresentationViewController:(nonnull MSALViewController *)parentViewController;