Add single-user local authentication

bindery/static/js/main.js

@@ -78,7 +78,7 @@ function shell() {
     auth.mode !== 'none' &&
     auth.user && [
       h('span', {}, auth.user),
-      (auth.mode === 'cwa' || auth.logout_url) &&
+      (auth.mode === 'cwa' || auth.mode === 'local' || auth.logout_url) &&
         h('button', { type: 'button', onclick: () => logout().catch(showError) }, 'Log out'),
     ];
   nav = h('nav', { 'aria-label': 'Main navigation' }, h('a', { href: '#/' }, 'Stories'), h('a', { href: '#/settings' }, 'Settings'));
@@ -134,7 +134,7 @@ function loginPage() {
       },
     },
     h('h1', { class: 'brand' }, h('img', { src: 'static/favicon.svg', alt: '', width: 28, height: 28 }), 'Bindery'),
-    h('p', { class: 'hint' }, 'Log in with your CWA account.'),
+    h('p', { class: 'hint' }, auth.mode === 'local' ? 'Log in with your Bindery account.' : 'Log in with your CWA account.'),
     h('label', {}, 'User name', username),
     h('label', {}, 'Password', password),
     h('label', {}, remember, ' Keep me logged in'),