[lib] Introduce a restore flow flag

Summary:
This flag is used to decide if we show the restore button.

https://linear.app/comm/issue/ENG-9679/create-a-screen-where-user-can-choose-between-usernamepassword-and

Test Plan: Flow

Reviewers: kamil, angelika, bartek

Reviewed By: kamil

Subscribers: ashoat

Differential Revision: https://phab.comm.dev/D13905

lib/utils/services-utils.js

@@ -18,6 +18,11 @@ const supportingMultipleKeyservers = false;
 // an authoritative keyserver for things like DMs.
 const relyingOnAuthoritativeKeyserver = true;
 
+// If this is true, then we're using the login 2.0, which means that a user
+// can either restore an account (primary login) or log in using the QR code
+// (secondary login).
+const usingRestoreFlow = false;
+
 function handleHTTPResponseError(response: Response): void {
   if (!response.ok) {
     const { status, statusText } = response;
@@ -47,6 +52,7 @@ export {
   usingCommServicesAccessToken,
   supportingMultipleKeyservers,
   relyingOnAuthoritativeKeyserver,
+  usingRestoreFlow,
   createHTTPAuthorizationHeader,
   createDefaultHTTPRequestHeaders,
 };