Liquid and Testnet now accessable from the main site

fixes #35

frontend/src/app/pipes/relative-url/relative-url.pipe.spec.ts

@@ -0,0 +1,8 @@
+import { RelativeUrlPipe } from './relative-url.pipe';
+
+describe('RelativeUrlPipe', () => {
+  it('create an instance', () => {
+    const pipe = new RelativeUrlPipe();
+    expect(pipe).toBeTruthy();
+  });
+});

frontend/src/app/pipes/relative-url/relative-url.pipe.ts

@@ -0,0 +1,17 @@
+import { Pipe, PipeTransform } from '@angular/core';
+import { StateService } from 'src/app/services/state.service';
+
+@Pipe({
+  name: 'relativeUrl'
+})
+export class RelativeUrlPipe implements PipeTransform {
+
+  constructor(
+    private stateService: StateService,
+  ) { }
+
+  transform(value: string): string {
+    return (this.stateService.network ? '/' + this.stateService.network : '') + value;
+  }
+
+}