[PowerDisplay] Add custom vcp code name map and fix some bugs (#45355)

<!-- Enter a brief description/summary of your PR here. What does it
fix/what does it change/how was it tested (even manually, if necessary)?
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## Summary of the Pull Request
1. Fix quick access not working bug
2. Add custom value mapping
3. Fix some vcp slider visibility bug

demo for custom vcp value name mapping:
<img width="1399" height="744" alt="image"
src="https://github.com/user-attachments/assets/517e4dbb-409a-4e43-b15a-d0d31e59ce49"
/>
<img width="1379" height="337" alt="image"
src="https://github.com/user-attachments/assets/18f6f389-089c-4441-ad9f-5c45cac53814"
/>
<img width="521" height="1152" alt="image"
src="https://github.com/user-attachments/assets/27b5f796-66fa-4781-b16f-4770bebf3504"
/>
<img width="295" height="808" alt="image"
src="https://github.com/user-attachments/assets/54eaf5b9-5d54-4531-a40b-de3113122715"
/>


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- [ ] Closes: #xxx
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and link it here: #xxx

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## Detailed Description of the Pull Request / Additional comments

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---------

Co-authored-by: Yu Leng <yuleng@microsoft.com>

src/modules/powerdisplay/PowerDisplayModuleInterface/PowerDisplayProcessManager.cpp

@@ -52,8 +52,11 @@ void PowerDisplayProcessManager::send_message(const std::wstring& message_type,
 {
     submit_task([this, message_type, message_arg] {
         // Ensure process is running before sending message
-        if (!is_process_running() && m_enabled)
+        // If process is not running, enable and start it - this allows Quick Access launch
+        // to work even when the module was not previously enabled
+        if (!is_process_running())
         {
+            m_enabled = true;
             refresh();
         }
         send_named_pipe_message(message_type, message_arg);