fix(lib): use document token to access window

Use DOCUMENT token for safe access of the window object on SSR

packages/ngx-fast-lib/src/lib/token/svg-load.strategy.ts

@@ -1,11 +1,13 @@
 import { from, Observable, of, switchMap } from 'rxjs';
 import { getZoneUnPatchedApi } from '../internal/get-zone-unpatched-api';
 import { SvgLoadStrategy } from './svg-load.strategy.model';
-import { Injectable } from '@angular/core';
+import { DOCUMENT } from '@angular/common';
+import { inject, Injectable } from '@angular/core';
 
 @Injectable()
 export class SvgLoadStrategyImpl implements SvgLoadStrategy {
-  fetch = getZoneUnPatchedApi('fetch', window as any);
+  document = inject(DOCUMENT);
+  fetch = getZoneUnPatchedApi('fetch', this.document.defaultView as any);
 
   load(url$: Observable<string>): Observable<string> {
     return url$.pipe(switchMap((url) => {