implemented web manifest

app/manifest.json

@@ -0,0 +1,41 @@
+{
+    "name": "App Režije",
+    "short_name": "Režije",
+    "icons": [
+        {
+            "src": "/icon1.png",
+            "sizes": "16x16",
+            "type": "image/png"
+        },
+        {
+            "src": "/icon2.png",
+            "sizes": "32x32",
+            "type": "image/png"
+        },
+        {
+            "src": "/icon3.png",
+            "sizes": "48x48",
+            "type": "image/png"
+        },
+        {
+            "src": "/icon4.png",
+            "sizes": "64x64",
+            "type": "image/png"
+        },
+        {
+            "src": "/icon5.png",
+            "sizes": "128x128",
+            "type": "image/png"
+        },
+        {
+            "src": "/icon6.png",
+            "sizes": "256x256",
+            "type": "image/png"
+        }
+    ],
+    "start_url": "/",
+    "scope": "/",
+    "theme_color": "#15191e",
+    "background_color": "#15191e",
+    "display": "standalone"
+}