Implemented following stuff

- Basic Material Design
- Default Component to see anything
- theme switching between light and dark
- language change between german and english

angular.json

@@ -25,9 +25,15 @@
             "tsConfig": "tsconfig.app.json",
             "inlineStyleLanguage": "scss",
             "assets": [
+              "src/favicon.ico",
               {
                 "glob": "**/*",
                 "input": "public"
+              },
+              {
+                "glob": "**/*",
+                "input": "src/assets",
+                "output": "/assets"
               }
             ],
             "styles": [