ZoomIt: close the virtual microphone on stop (#45386)

This is not a leak per se, but closing the virtual microphone when
recording stops is a good thing to do.
Also bump ZoomIt's version to 10.1.

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fix/what does it change/how was it tested (even manually, if necessary)?
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## Summary of the Pull Request

This is a code quality addition, not a real bug per se - ZoomIt holds
one reference to a virtual microphone stream, thus causing the
notification area (system tray) microphone symbol always show ZoomIt as
"recording" even after stopping a screen recording in ZoomIt.
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## PR Checklist

- [ ] Closes: #xxx
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or any additional comments/features here -->
## Detailed Description of the Pull Request / Additional comments

It's sufficient to just notice that:

- Audio recording still works.
- The notification area / system tray microphone notification is active
while screen recording.
- That notification disappears after stopping the ZoomIt screen capture
session.
- 
<!-- Describe how you validated the behavior. Add automated tests
wherever possible, but list manual validation steps taken as well -->
## Validation Steps Performed

src/modules/ZoomIt/ZoomIt/AudioSampleGenerator.cpp

@@ -311,6 +311,14 @@ void AudioSampleGenerator::Stop()
     // Stop the audio graph - no more quantum callbacks will run
     m_audioGraph.Stop();
 
+    // Close the microphone input node to release the device so Windows no longer
+    // reports the microphone as in use by ZoomIt.
+    if (m_audioInputNode)
+    {
+        m_audioInputNode.Close();
+        m_audioInputNode = nullptr;
+    }
+
     // Mark as stopped
     m_started.store(false);
 

src/modules/ZoomIt/ZoomIt/ZoomIt.rc

@@ -121,7 +121,7 @@ FONT 8, "MS Shell Dlg", 0, 0, 0x0
 BEGIN
     DEFPUSHBUTTON   "OK",IDOK,186,306,50,14
     PUSHBUTTON      "Cancel",IDCANCEL,243,306,50,14
-    LTEXT           "ZoomIt v10.0",IDC_VERSION,42,7,73,10
+    LTEXT           "ZoomIt v10.1",IDC_VERSION,42,7,73,10
     LTEXT           "Copyright \251 2006-2026 Mark Russinovich",IDC_COPYRIGHT,42,17,251,8
     CONTROL         "<a HREF=""https://www.sysinternals.com"">Sysinternals - www.sysinternals.com</a>",IDC_LINK,
                     "SysLink",WS_TABSTOP,42,26,150,9