Feat: ImageRequestInit (#979)

* add ImageRequestInit & fix Hako

* remove multisrc fetchFile

* remove plugins fetchFile

* update docs and template file

scripts/multisrc/lightnovelworld/template.ts

@@ -1,5 +1,5 @@
 import { load as parseHTML } from 'cheerio';
-import { fetchApi, fetchFile } from '@libs/fetch';
+import { fetchApi } from '@libs/fetch';
 import { Plugin } from '@typings/plugin';
 import { Filters, FilterTypes } from '@libs/filterInputs';
 import dayjs from 'dayjs';
@@ -27,6 +27,9 @@ class LightNovelWorld implements Plugin.PagePlugin {
     Accept: 'application/json',
     'Content-Type': 'application/json',
   };
+  imageRequestInit?: Plugin.ImageRequestInit | undefined = {
+    headers: this.headers,
+  };
   options?: LightNovelWorldOptions;
 
   constructor(metadata: LightNovelWorldMetadata) {
@@ -188,10 +191,6 @@ class LightNovelWorld implements Plugin.PagePlugin {
     return novels;
   }
 
-  async fetchImage(url: string): Promise<string | undefined> {
-    return fetchFile(url, { headers: this.headers });
-  }
-
   filters = {
     order: {
       value: 'popular',