feat: deliver the redesigned desktop workspace

Rebuild downloads, link collection, settings, history, and statistics around a responsive desktop shell with compact account and queue tables, contextual navigation, persistent update affordances, unified overlays, and accessible keyboard interactions.

Add safe history-folder reveal IPC, responsive 2560/1920/1366/1120 coverage, deterministic visual fixtures, focused component regressions, and release-tree exclusions for internal working files. Bump the public application version to 2.0.13.

tests/visual/vite.config.mts

@@ -0,0 +1,14 @@
+import path from "node:path";
+import react from "@vitejs/plugin-react";
+import { defineConfig } from "vite";
+
+export default defineConfig({
+  plugins: [react()],
+  root: path.resolve(__dirname),
+  publicDir: path.resolve(__dirname, "../../assets"),
+  server: {
+    fs: {
+      allow: [path.resolve(__dirname, "../..")]
+    }
+  }
+});