refactor(frontend): lint, one session guard, one request helper, one user context

src/pages/SettingsPage.test.jsx

@@ -4,6 +4,7 @@ import {act, cleanup, fireEvent, render, screen, waitFor, within} from '@testing
 import {MemoryRouter} from 'react-router-dom';
 import SettingsPage from './SettingsPage.jsx';
 import {PreferencesProvider} from '../context/PreferencesContext.jsx';
+import {CurrentUserProvider} from '../context/CurrentUserContext.jsx';
 
 vi.mock('react-i18next', async () => {
     const mock = await import('../test/i18n-mock.js');
@@ -26,7 +27,7 @@ function renderPage(me) {
         // Both PUTs answer 204 without a body, like Auth does.
         ? {ok: true, status: 204, json: async () => { throw new SyntaxError('no body'); }}
         : {ok: true, status: 200, json: async () => me}));
-    render(<MemoryRouter><PreferencesProvider><SettingsPage/></PreferencesProvider></MemoryRouter>);
+    render(<MemoryRouter><PreferencesProvider><CurrentUserProvider><SettingsPage/></CurrentUserProvider></PreferencesProvider></MemoryRouter>);
 }
 
 /**
@@ -66,7 +67,7 @@ describe('SettingsPage public profile', () => {
 
     it('builds a save on the one before it, also while that one is still open', async () => {
         const auth = fakeAuth(profile());
-        render(<MemoryRouter><PreferencesProvider><SettingsPage/></PreferencesProvider></MemoryRouter>);
+        render(<MemoryRouter><PreferencesProvider><CurrentUserProvider><SettingsPage/></CurrentUserProvider></PreferencesProvider></MemoryRouter>);
 
         fireEvent.click(await screen.findByRole('switch', {name: 'SETTINGS.PUBLIC_PROFILE'}));
         await waitFor(() => expect(puts()).toHaveLength(1));