feat(hytale): add HytaleDemoGrid component and demo data

- Introduced HytaleDemoGrid.vue to showcase live Hytale plugins with a responsive layout.
- Created hytaleDemos.ts to manage demo data, including details for VotePipe and GravityFlip plugins.
- Updated Hytale page to include the new demo grid section.
- Enhanced AppFooter and ServicesSection with i18n support for better localization.
- Added new blog post detailing the development process of the GravityFlip plugin, available in both English and French.

This commit enhances the visibility of Hytale plugins and improves the overall user experience on the site.

app/data/hytaleDemos.ts

@@ -0,0 +1,34 @@
+// Live Hytale plugins shipped publicly — featured on /hytale#demos
+// Each entry has corresponding i18n keys at hytale.demos.{id}.*
+export interface HytaleDemo {
+  id: string
+  image: string
+  github?: string
+  curseforge?: string
+  modtale?: string
+  website?: string
+  tech: string[]
+  status: 'live' | 'pending' | 'soon'
+  featured?: boolean
+}
+
+export const hytaleDemos: HytaleDemo[] = [
+  {
+    id: 'votepipe',
+    image: '/images/projects/votepipe.svg',
+    website: 'https://votepipe.com',
+    modtale: 'https://modtale.net/mod/votepipe',
+    curseforge: 'https://www.curseforge.com/hytale/mods/votepipe',
+    tech: ['Java 25', 'SaaS', 'Webhooks', 'Votifier'],
+    status: 'live',
+    featured: true,
+  },
+  {
+    id: 'gravity-flip',
+    image: '/images/projects/gravityflip.png',
+    modtale: 'https://modtale.net/mod/gravity-flip',
+    curseforge: 'https://curseforge.com/hytale/mods/gravity-flip',
+    tech: ['Java 25', 'Gradle Shadow', 'Hytale API'],
+    status: 'live',
+  },
+]