Add Pull Now button and provider logos to accounts page

Agent-Logs-Url: https://github.com/christianlouis/InboxConverge/sessions/0201089a-598d-4ab0-a5a3-8d2ae1120c9e

Co-authored-by: christianlouis <361235+christianlouis@users.noreply.github.com>

frontend/src/lib/api.ts

@@ -318,6 +318,11 @@ export const mailAccountsApi = {
     return response.data;
   },
 
+  async pullNow(id: number): Promise<{ message: string }> {
+    const response = await api.post<{ message: string }>(`/mail-accounts/${id}/pull-now`);
+    return response.data;
+  },
+
   async delete(id: number): Promise<void> {
     await api.delete(`/mail-accounts/${id}`);
   },