Temp fix to incorrect detection of if else branches in code coverage

See angular cli regression: angular/angular-cli#11672

Author: drumonii

frontend/angular.json

@@ -68,6 +68,7 @@
           "options": {
             "main": "src/test.ts",
             "karmaConfig": "src/karma.conf.js",
+            "sourceMap": true,
             "polyfills": "src/polyfills.ts",
             "tsConfig": "src/tsconfig.spec.json",
             "scripts": [],