update docs

FAQ/FAQ.md

@@ -1,14 +1,34 @@
-## FAQ has been moved
-[Click here to visit](https://github.com/jayfunc/BetterLyrics?tab=readme-ov-file#faq)
+### Where I can find the logs?
+C:\Users\%USERNAME%\AppData\Local\Packages\37412.BetterLyrics_c8mj3v9sysxb4\LocalCache\logs
 
-## FAQ 现已迁移
-[点此访问](https://github.com/jayfunc/BetterLyrics/blob/dev/README.zh-CN.md#faq)
+### How to install ".msixbundle" package?
+[See this doc](https://github.com/jayfunc/BetterLyrics/blob/dev/How2Install/How2Install.md)
 
-## FAQ 已移至新位置
-[點此前往](https://github.com/jayfunc/BetterLyrics/blob/dev/README.zh-TW.md#faq)
+### Lyrics are moving back and forth constantly, how to fix it?
+![](Snipaste_2025-08-22_14-59-53.png)
 
-## FAQ は移動しました
-[こちらをクリック](https://github.com/jayfunc/BetterLyrics/blob/dev/README.ja.md#faq)
+Go to Settings > Playback sources > Disable "Lyrics timeline sync" or increase "Lyrics timeline sync threshold"
 
-## FAQ가 이동되었습니다
-[여기를 클릭하세요](https://github.com/jayfunc/BetterLyrics/blob/dev/README.ko.md#faq)
+### Wrong lyrics are shown, how to fix it?
+![](Snipaste_2025-08-22_14-47-21.png)
+
+Open search panel to manually search for the correct lyrics.
+
+### Playback control panel is not showing in dock mode, how to fix it?
+![](Snipaste_2025-08-22_14-50-16.png)
+
+Hover over the bottom of the lyrics window and click on the white line to show the playback control panel.
+
+### How to lock/unlock the lyrics window in desktop mode?
+![](Snipaste_2025-08-22_14-52-53.png)
+
+![](Snipaste_2025-08-22_14-53-21.png)
+
+Alternatively, you can also use the shortcut `Ctrl+Alt+U` (default) to toggle lock/unlock.
+
+![](Snipaste_2025-08-22_14-53-58.png)
+
+You can change the shortcut in Settings > App appearance and behavior > Unlock and lock shortcut keys
+
+### How to enable/disable immersive mode?
+![](Snipaste_2025-08-22_14-58-44.png)