UI update with sidebar and settings tabs (#3288)

Co-authored-by: Nahiyan Khan <nahiyan@squareup.com>
Co-authored-by: Taylor Ho <taylorkmho@gmail.com>
Co-authored-by: Lily Delalande <119957291+lily-de@users.noreply.github.com>
Co-authored-by: Spence <spencrmartin@gmail.com>
Co-authored-by: spencrmartin <spencermartin@squareup.com>
Co-authored-by: Judson Stephenson <Jud@users.noreply.github.com>
Co-authored-by: Max Novich <mnovich@squareup.com>
Co-authored-by: Best Codes <106822363+The-Best-Codes@users.noreply.github.com>
Co-authored-by: caroline-a-mckenzie <cmckenzie@squareup.com>
Co-authored-by: Michael Neale <michael.neale@gmail.com>

ui/desktop/vite.preload.config.mts

@@ -0,0 +1,17 @@
+import { defineConfig } from 'vite';
+
+// https://vitejs.dev/config
+export default defineConfig({
+  build: {
+    ssr: true,
+    outDir: '.vite/build',
+    rollupOptions: {
+      input: 'src/preload.ts',
+      output: {
+        format: 'cjs',
+        entryFileNames: 'preload.js'
+      },
+      external: ['electron']
+    }
+  }
+});