docs: update hero copy across landing page and docs

Clearer messaging: "50+ image tools. One Docker container." on landing,
"Self-Hosted Image Toolkit" on docs.

apps/docs/index.md

@@ -3,8 +3,8 @@ layout: home
 
 hero:
   name: "SnapOtter"
-  text: "A Self Hosted Image Manipulator"
+  text: "Self-Hosted Image Toolkit"
-  tagline: 50+ tools. Local AI. No cloud. Your images never leave your home.
+  tagline: 50+ tools. Resize, compress, convert, remove backgrounds, upscale, OCR, and more. One Docker container, fully offline.
   actions:
     - theme: brand
       text: Get started

apps/landing/src/components/hero.tsx

@@ -115,11 +115,12 @@ export function Hero() {
 
       <div className="relative mx-auto max-w-4xl text-center">
         <h1 className="animate-[fadeUp_0.6s_ease-out_both] font-[family-name:var(--font-nunito)] text-4xl font-extrabold tracking-tight sm:text-5xl md:text-6xl lg:text-7xl">
-          Your images. Stay yours.
+          50+ image tools. One Docker container.
         </h1>
 
         <p className="mt-4 animate-[fadeUp_0.6s_ease-out_0.1s_both] text-base text-muted md:text-lg">
-          A free, open-source image toolkit with 50+ tools that runs entirely on your network.
+          Resize, compress, convert, remove backgrounds, upscale, OCR, and more. Open source. Runs
+          on your network.
         </p>
 
         <p className="mt-4 animate-[fadeUp_0.6s_ease-out_0.2s_both] text-xl font-medium md:text-2xl">