added PWA webmanifest

angular.json

@@ -28,7 +28,8 @@
             "assets": [
               "src/favicon.ico",
               "src/assets",
-              "src/config"
+              "src/config",
+              "src/manifest.webmanifest"
             ],
             "styles": [
               "angularlib/styles/main.theme.scss",

src/manifest.webmanifest

@@ -0,0 +1,47 @@
+{
+  "name": "Financial Information System",
+  "short_name": "FIS",
+  "theme_color": "#1976d2",
+  "background_color": "#fafafa",
+  "display": "fullscreen",
+  "scope": "./",
+  "start_url": "./#/dashboard",
+  "icons": [
+    {
+      "src": "assets/icons/icon-48x48.png",
+      "sizes": "48x48",
+      "type": "image/png",
+      "purpose": "maskable any"
+    },
+    {
+      "src": "assets/icons/icon-72x72.png",
+      "sizes": "72x72",
+      "type": "image/png",
+      "purpose": "maskable any"
+    },
+    {
+      "src": "assets/icons/icon-96x96.png",
+      "sizes": "96x96",
+      "type": "image/png",
+      "purpose": "maskable any"
+    },
+    {
+      "src": "assets/icons/icon-144x144.png",
+      "sizes": "144x144",
+      "type": "image/png",
+      "purpose": "maskable any"
+    },
+    {
+      "src": "assets/icons/icon-192x192.png",
+      "sizes": "192x192",
+      "type": "image/png",
+      "purpose": "maskable any"
+    },
+    {
+      "src": "assets/icons/icon-512x512.png",
+      "sizes": "512x512",
+      "type": "image/png",
+      "purpose": "maskable any"
+    }
+  ]
+}