Update attachment.ts

src/app/services/attachment.ts

@@ -404,7 +404,7 @@ export class AttachmentService {
  private checkFileType(file): Promise<any> {
  return new Promise((resolve, reject) => {
  if (file.type && file.type.indexOf('video/') === 0) {
- if (file.size > 1900000000) {
+ if (file.size > 3900000000) {
  throw new Error('File exceeds 1.9GB maximum size. Please try compressing your file.');
  }