remove rocket chat

src/app/infra/file-picker/web/file-picker-web.service.ts

@@ -0,0 +1,26 @@
+import { Injectable } from '@angular/core';
+import { FileType } from 'src/app/models/fileType';
+
+@Injectable({
+  providedIn: 'root'
+})
+export class FilePickerWebService {
+
+  constructor() { }
+
+  getFileFromDevice(types: typeof FileType[]): Promise<File> {
+    let input = document.createElement('input');
+    input.type = 'file';
+    input.accept = types.join(', ')
+
+    input.click();
+
+    return new Promise((resolve, reject)=>{
+      input.onchange = async () => {
+        const file = Array.from(input.files)
+        resolve(file[0] as File);
+      };
+    })
+  }
+
+}