feat: initial implementation of qsv Easy installer for Windows

src/App.css

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+@import "tailwindcss";
+
+.logo.vite:hover {
+    filter: drop-shadow(0 0 2em #747bff);
+}
+
+.logo.react:hover {
+    filter: drop-shadow(0 0 2em #61dafb);
+}
+:root {
+    font-family: Inter, Avenir, Helvetica, Arial, sans-serif;
+    font-size: 16px;
+    line-height: 24px;
+    font-weight: 400;
+
+    color: #0f0f0f;
+    background-color: #f6f6f6;
+
+    font-synthesis: none;
+    text-rendering: optimizeLegibility;
+    -webkit-font-smoothing: antialiased;
+    -moz-osx-font-smoothing: grayscale;
+    -webkit-text-size-adjust: 100%;
+}
+
+.container {
+    margin: 0;
+    padding-top: 10vh;
+    display: flex;
+    flex-direction: column;
+    justify-content: center;
+    text-align: center;
+}
+
+.logo {
+    height: 6em;
+    padding: 1.5em;
+    will-change: filter;
+    transition: 0.75s;
+}
+
+.logo.tauri:hover {
+    filter: drop-shadow(0 0 2em #24c8db);
+}
+
+.row {
+    display: flex;
+    justify-content: center;
+}
+
+a {
+    font-weight: 500;
+    color: #646cff;
+    text-decoration: inherit;
+}
+
+a:hover {
+    color: #535bf2;
+}
+
+h1 {
+    text-align: center;
+}
+
+input,
+button {
+    border-radius: 8px;
+    border: 1px solid transparent;
+    padding: 0.6em 1.2em;
+    font-size: 1em;
+    font-weight: 500;
+    font-family: inherit;
+    color: #0f0f0f;
+    background-color: #ffffff;
+    transition: border-color 0.25s;
+    box-shadow: 0 2px 2px rgba(0, 0, 0, 0.2);
+}
+
+button {
+    cursor: pointer;
+}
+
+button:hover {
+    border-color: #396cd8;
+}
+button:active {
+    border-color: #396cd8;
+    background-color: #e8e8e8;
+}
+
+input,
+button {
+    outline: none;
+}
+
+@media (prefers-color-scheme: dark) {
+    :root {
+        color: #f6f6f6;
+        background-color: #2f2f2f;
+    }
+
+    a:hover {
+        color: #24c8db;
+    }
+
+    input,
+    button {
+        color: #ffffff;
+        background-color: #0f0f0f98;
+    }
+    button:active {
+        background-color: #0f0f0f69;
+    }
+}

src/App.tsx

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+import { useState } from "react";
+import { invoke } from "@tauri-apps/api/core";
+import { Loader2Icon } from "lucide-react";
+
+import "./App.css";
+
+function App() {
+  const [loading, setLoading] = useState(false);
+  return (
+    <main className="justify-center mx-auto grid mt-32">
+      <div className="w-full flex justify-center">
+        <img width="100px" alt="qsv logo" src="/qsv-logo-icon.png" />
+      </div>
+      <h1 className="text-3xl my-4 font-bold">
+        qsv Easy installer for Windows
+      </h1>
+      <p className="mb-4">
+        Click the button to install the latest release of qsv and then qsv
+        should be accessible from a new terminal.
+      </p>
+      <button
+        disabled={loading}
+        onClick={() => {
+          setLoading(true);
+          invoke("run_path_update").finally(() => {
+            setLoading(false);
+          });
+        }}
+        className="mx-auto w-full flex justify-center bg-blue-400"
+      >
+        {loading ? (
+          <Loader2Icon className="animate-spin" />
+        ) : (
+          <p>Install qsv 🚀</p>
+        )}
+      </button>
+      {loading && (
+        <p className="mt-4 text-center">
+          Downloading and installing to PATH. This may take a few seconds...
+        </p>
+      )}
+    </main>
+  );
+}
+
+export default App;

src/main.tsx

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+import React from "react";
+import ReactDOM from "react-dom/client";
+import App from "./App";
+
+ReactDOM.createRoot(document.getElementById("root") as HTMLElement).render(
+  <React.StrictMode>
+    <App />
+  </React.StrictMode>,
+);

src/vite-env.d.ts

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+/// <reference types="vite/client" />