fix: say that {company} takes the branding of the web address Bulwark is opened on

app/(main)/admin/__tests__/org-signatures-page.test.tsx

@@ -78,6 +78,8 @@ describe('Organisation > Signatures', () => {
     fireEvent.focus(text);
     fireEvent.click(screen.getByRole('button', { name: '{department}' }));
     await waitFor(() => expect((screen.getByTestId('org-signature-text') as HTMLTextAreaElement).value).toBe('{department}'));
+    // Branding per domain goes by the web address Bulwark is opened on, not the sender's domain.
+    expect(screen.getByText('company name from Branding, for the web address Bulwark is opened on')).toBeInTheDocument();
   });
 
   it('sets a disclaimer for a scope, with a preview', async () => {

components/admin/org/sections/signature-section.tsx

@@ -30,7 +30,7 @@ const PLACEHOLDER_HELP: Record<SignaturePlaceholder, string> = {
   name: 'name of the address the mail is sent from',
   email: 'that address',
   identity: 'name and address, as in From',
-  company: 'company name from Branding (per domain)',
+  company: 'company name from Branding, for the web address Bulwark is opened on',
   domain: 'domain of the address',
   title: 'job title the user fills in',
   department: 'department the user fills in',