feat: scaffold initial Cheatsheet Hub application

This commit establishes the foundational structure for the Cheatsheet Hub project.

It includes the setup of a Vue 3, Vite, and TailwindCSS stack, along with core application features:

- **Routing:** Configures `vue-router` for Home, Cheatsheet List, and Cheatsheet Detail pages.
- **State Management:** Implements a `pinia` store for theme management (dark/light mode) and mock data.
- **UI Components:** Adds reusable components like `NavBar`, `CheatsheetCard`, and `PrintButton`.
- **Styling:** Integrates TailwindCSS with custom base styles, dark mode support, and print-friendly optimizations.
- **Dependencies:** Adds key libraries including `marked` for content rendering.

src/views/CheatsheetListView.vue

@@ -0,0 +1,25 @@
+<template>
+  <div>
+    <h1 class="text-3xl font-bold mb-8">All Cheatsheets</h1>
+
+    <div class="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-6">
+      <CheatsheetCard v-for="cheatsheet in cheatsheets" :key="cheatsheet.id" :cheatsheet="cheatsheet" />
+    </div>
+  </div>
+</template>
+
+<script lang="ts">
+import { mapState } from 'pinia'
+import { useAppStore } from '../stores'
+import CheatsheetCard from '../components/CheatsheetCard.vue'
+
+export default {
+  name: 'CheatsheetListView',
+  components: {
+    CheatsheetCard
+  },
+  computed: {
+    ...mapState(useAppStore, ['cheatsheets'])
+  }
+}
+</script>