fix: docs build error (#507)

* fix: docs build error

* feat: override angular cli browserslist

Author: steveblue

.browserslistrc

@@ -0,0 +1,5 @@
+> 0.5%
+last 2 versions
+Firefox ESR
+not dead
+not IE 9-11

src/environments/environment.prod.ts

@@ -1,6 +1,7 @@
-import { version } from '../../projects/swimlane/ngx-graph/package.json';
+// eslint-disable-next-line
+const packageVersion = require('../../projects/swimlane/ngx-graph/package.json').version;
 
 export const environment = {
   production: true,
-  version
+  version: packageVersion
 };

src/environments/environment.ts

@@ -1,12 +1,13 @@
-import packageInfo from '../../projects/swimlane/ngx-graph/package.json';
+// eslint-disable-next-line
+const packageVersion = require('../../projects/swimlane/ngx-graph/package.json').version;
 
 // This file can be replaced during build by using the `fileReplacements` array.
 // `ng build ---prod` replaces `environment.ts` with `environment.prod.ts`.
 // The list of file replacements can be found in `angular.json`.
 
 export const environment = {
   production: false,
-  version: packageInfo.version
+  version: packageVersion
 };
 
 /*

tsconfig.json

@@ -17,7 +17,8 @@
     "paths": {
       "@swimlane/ngx-graph": ["projects/swimlane/ngx-graph/src/public_api"],
       "@swimlane/ngx-graph/*": ["projects/swimlane/ngx-graph/src/*"]
-    }
+    },
+    "types": ["node"]
   },
   "angularCompilerOptions": {
     "fullTemplateTypeCheck": true