if fps is adjusted below 30, not set fps to 30 when changing image quality (#8468)

Signed-off-by: 21pages <sunboeasy@gmail.com>

src/client.rs

@@ -1203,6 +1203,7 @@ pub struct LoginConfigHandler {
     pub save_ab_password_to_recent: bool, // true: connected with ab password
     pub other_server: Option<(String, String, String)>,
     pub custom_fps: Arc<Mutex<Option<usize>>>,
+    pub last_auto_fps: Option<usize>,
     pub adapter_luid: Option<i64>,
     pub mark_unsupported: Vec<CodecFormat>,
     pub selected_windows_session_id: Option<u32>,