Heatmap solver is now a worker

- Android app now requests root (purpose still unknown)
- Android app starts on boot
- Frontend is now a PWA (purpose still unknown)

frontend/angular.json

@@ -25,7 +25,8 @@
             "aot": true,
             "assets": [
               "src/favicon.ico",
-              "src/assets"
+              "src/assets",
+              "src/manifest.webmanifest"
             ],
             "styles": [
               "src/styles.scss",
@@ -34,7 +35,8 @@
             ],
             "scripts": [
               "./node_modules/chart.js/dist/Chart.min.js"
-            ]
+            ],
+            "webWorkerTsConfig": "tsconfig.worker.json"
           },
           "configurations": {
             "production": {
@@ -63,7 +65,9 @@
                   "maximumWarning": "6kb",
                   "maximumError": "10kb"
                 }
-              ]
+              ],
+              "serviceWorker": true,
+              "ngswConfigPath": "ngsw-config.json"
             }
           }
         },
@@ -93,7 +97,8 @@
             "karmaConfig": "karma.conf.js",
             "assets": [
               "src/favicon.ico",
-              "src/assets"
+              "src/assets",
+              "src/manifest.webmanifest"
             ],
             "styles": [
               "src/styles.scss"
@@ -107,7 +112,8 @@
             "tsConfig": [
               "tsconfig.app.json",
               "tsconfig.spec.json",
-              "e2e/tsconfig.json"
+              "e2e/tsconfig.json",
+              "tsconfig.worker.json"
             ],
             "exclude": [
               "**/node_modules/**"