add manifest for pwa

add manifest for pwa

.gitignore

@@ -1,2 +1,3 @@
 .venv
+venv
 __pycache__

src/api.py

@@ -1,6 +1,7 @@
 from fastapi import FastAPI
 from fastapi import FastAPI, Request
 from fastapi.responses import HTMLResponse
+from fastapi.responses import FileResponse
 from fastapi.templating import Jinja2Templates
 from cachetools import cached, TTLCache
 from bs4 import BeautifulSoup
@@ -56,3 +57,10 @@ async def root(request: Request):
         request=request, name="main.html", context={"text": answer, "color": color , "emoji": emoji}
     )
 
+@app.get("/manifest.json")
+async def manifest(request: Request):
+    return FileResponse(path="assets/manifest.json")
+
+@app.get("/icons/512.png")
+async def icon(request: Request):
+    return FileResponse(path="assets/logo.png")

src/assets/manifest.json

@@ -0,0 +1,11 @@
+{
+    "name": "Spätzle Check",
+    "icons": [
+      {
+        "src": "icons/512.png",
+        "type": "image/png",
+        "sizes": "512x512"
+      }
+    ]
+  }
+  

src/template/main.html

@@ -6,6 +6,7 @@
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <link rel="preconnect" href="https://fonts.googleapis.com">
     <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
+    <link rel="manifest" href="/manifest.json">
 
     <title>{{text}} - {{emoji}}</title>
     <style>