feat: initialize Electron dashboard with basic structure

dashboard/src/preload/index.js

@@ -0,0 +1,16 @@
+import { contextBridge } from 'electron'
+import { electronAPI } from '@electron-toolkit/preload'
+
+const api = {}
+
+if (process.contextIsolated) {
+  try {
+    contextBridge.exposeInMainWorld('electron', electronAPI)
+    contextBridge.exposeInMainWorld('api', api)
+  } catch (error) {
+    console.error(error)
+  }
+} else {
+  window.electron = electronAPI
+  window.api = api
+}