build: 清理代码并且升级依赖。

src-tauri/src/picker/screen.rs

@@ -3,7 +3,6 @@ use std::{io::ErrorKind::WouldBlock, time::Duration, thread};
 
 pub struct Screen {
     capturer: Option<Capturer>,
-    init_error: Option<anyhow::Error>,
     pub width: usize,
     pub height: usize,
 }
@@ -12,16 +11,6 @@ impl Screen {
     pub fn new(capturer: Capturer, width: usize, height: usize) -> Self {
         Self {
             capturer: Some(capturer),
-            init_error: None,
-            width,
-            height,
-        }
-    }
-
-    pub fn new_failed(init_error: anyhow::Error, width: usize, height: usize) -> Self {
-        Self {
-            capturer: None,
-            init_error: Some(init_error),
             width,
             height,
         }