Update upgrade notification message (PowerShell#10777)

Author: SteveL-MSFT

src/Microsoft.PowerShell.ConsoleHost/host/msh/UpdatesNotification.cs

@@ -62,7 +62,33 @@ internal static void ShowUpdateNotification(PSHostUserInterface hostUI)
                     ? ManagedEntranceStrings.StableUpdateNotificationMessage
                     : ManagedEntranceStrings.PreviewUpdateNotificationMessage;
 
-                string notificationMsg = string.Format(CultureInfo.CurrentCulture, notificationMsgTemplate, releaseTag);
+                string notificationColor = string.Empty;
+                string resetColor = string.Empty;
+
+                string line2Padding = string.Empty;
+                string line3Padding = string.Empty;
+
+                // We calculate how much whitespace we need to make it look nice
+                if (hostUI.SupportsVirtualTerminal)
+                {
+                    // Use Warning Color
+                    notificationColor = "\x1B[7m";
+                    resetColor = "\x1B[0m";
+
+                    // The first line is longest, if the message changes, this needs to be updated
+                    int line1Length = notificationMsgTemplate.IndexOf('\n');
+                    int line2Length = notificationMsgTemplate.IndexOf('\n', line1Length + 1);
+                    int line3Length = notificationMsgTemplate.IndexOf('\n', line2Length + 1);
+                    line3Length -= line2Length + 1;
+                    line2Length -= line1Length + 1;
+
+                    line2Padding = line2Padding.PadRight(line1Length - line2Length + releaseTag.Length);
+                    // 3 represents the extra placeholder in the template
+                    line3Padding = line3Padding.PadRight(line1Length - line3Length + 3);
+                }
+
+                string notificationMsg = string.Format(CultureInfo.CurrentCulture, notificationMsgTemplate, releaseTag, notificationColor, resetColor, line2Padding, line3Padding);
+
                 hostUI.WriteLine(notificationMsg);
             }
         }

src/Microsoft.PowerShell.ConsoleHost/resources/ManagedEntranceStrings.resx

@@ -128,15 +128,15 @@ Type 'help' to get help.</value>
     <value>Warning: PowerShell detected that you might be using a screen reader and has disabled PSReadLine for compatibility purposes. If you want to re-enable it, run 'Import-Module PSReadLine'.</value>
   </data>
   <data name="PreviewUpdateNotificationMessage" xml:space="preserve">
-    <value>!! A new PowerShell preview release is available: v{0} !!
-Upgrade now, or check out the release page at:
-https://github.com/PowerShell/PowerShell/releases/tag/v{0}
+    <value>  {1} A new PowerShell preview release is available: v{0} {2}
+  {1} Upgrade now, or check out the release page at:{3}{2}
+  {1}   https://aka.ms/PowerShell-Release?tag=v{0} {4}{2}
 </value>
   </data>
   <data name="StableUpdateNotificationMessage" xml:space="preserve">
-    <value>!! A new PowerShell stable release is available: v{0} !!
-Upgrade now, or check out the release page at:
-https://github.com/PowerShell/PowerShell/releases/tag/v{0}
+    <value>  {1} A new PowerShell stable release is available: v{0} {2}
+  {1} Upgrade now, or check out the release page at:{3}{2}
+  {1}   https://aka.ms/PowerShell-Release?tag=v{0} {4}{2}
 </value>
   </data>
   <data name="UsageHelp" xml:space="preserve">