Allows users to use OAuth tokens instead of passwords

src-ui/src/app/components/common/edit-dialog/mail-account-edit-dialog/mail-account-edit-dialog.component.html

@@ -15,6 +15,7 @@
       <div class="col">
         <app-input-text i18n-title title="Username" formControlName="username" [error]="error?.username"></app-input-text>
         <app-input-password i18n-title title="Password" formControlName="password" [error]="error?.password"></app-input-password>
+        <app-input-check i18n-title title="Is Token?" formControlName="is_token" [error]="error?.is_token"></app-input-check>
         <app-input-text i18n-title title="Character Set" formControlName="character_set" [error]="error?.character_set"></app-input-text>
       </div>
     </div>

src-ui/src/app/components/common/edit-dialog/mail-account-edit-dialog/mail-account-edit-dialog.component.ts

@@ -45,6 +45,7 @@ export class MailAccountEditDialogComponent extends EditDialogComponent<Paperles
       imap_security: new FormControl(IMAPSecurity.SSL),
       username: new FormControl(null),
       password: new FormControl(null),
+      is_token: new FormControl(false),
       character_set: new FormControl('UTF-8'),
     })
   }

src-ui/src/app/data/paperless-mail-account.ts

@@ -20,4 +20,6 @@ export interface PaperlessMailAccount extends ObjectWithId {
   password: string
 
   character_set?: string
+
+  is_token: boolean
 }