feat: 增加 getFileIcon api

public/preload.js

@@ -41,7 +41,7 @@ window.rubick = {
     ipcSendSync('showMainWindow');
   },
   showOpenDialog(options) {
-    ipcSendSync('showOpenDialog', options);
+    return ipcSendSync('showOpenDialog', options);
   },
   setExpendHeight(height) {
     ipcSendSync('setExpendHeight', height);
@@ -162,4 +162,8 @@ window.rubick = {
   shellBeep: () => {
     ipcSend('shellBeep');
   },
+  
+  getFileIcon: (path) => {
+    return ipcSendSync('getFileIcon', { path });
+  },
 };