Add docs popover for SSH Keys (#2370)

app/pages/settings/SSHKeysPage.tsx

@@ -12,6 +12,7 @@ import { Link, Outlet, useNavigate } from 'react-router-dom'
 import { apiQueryClient, useApiMutation, useApiQueryClient, type SshKey } from '@oxide/api'
 import { Key16Icon, Key24Icon } from '@oxide/design-system/icons/react'
 
+import { DocsPopover } from '~/components/DocsPopover'
 import { confirmDelete } from '~/stores/confirm-delete'
 import { addToast } from '~/stores/toast'
 import { useColsWithActions, type MenuAction } from '~/table/columns/action-col'
@@ -21,6 +22,7 @@ import { buttonStyle } from '~/ui/lib/Button'
 import { EmptyMessage } from '~/ui/lib/EmptyMessage'
 import { PageHeader, PageTitle } from '~/ui/lib/PageHeader'
 import { TableActions } from '~/ui/lib/Table'
+import { docLinks } from '~/util/links'
 import { pb } from '~/util/path-builder'
 
 SSHKeysPage.loader = async () => {
@@ -79,6 +81,12 @@ export function SSHKeysPage() {
     <>
       <PageHeader>
         <PageTitle icon={<Key24Icon />}>SSH Keys</PageTitle>
+        <DocsPopover
+          heading="SSH keys"
+          icon={<Key16Icon />}
+          summary="SSH keys are used to securely access VM instances."
+          links={[docLinks.sshKeys]}
+        />
       </PageHeader>
       <TableActions>
         <Link className={buttonStyle({ size: 'sm' })} to={pb.sshKeysNew()}>

app/util/links.ts

@@ -27,6 +27,7 @@ export const links = {
     'https://docs.oxide.computer/guides/architecture/service-processors#_server_sled',
   snapshotsDocs:
     'https://docs.oxide.computer/guides/managing-disks-and-snapshots#_snapshots',
+  sshKeysDocs: 'https://docs.oxide.computer/guides/user-settings#_ssh_keys',
   storageDocs:
     'https://docs.oxide.computer/guides/architecture/os-hypervisor-storage#_storage',
   systemIpPoolsDocs: 'https://docs.oxide.computer/guides/operator/ip-pool-management',
@@ -86,6 +87,10 @@ export const docLinks = {
     href: links.snapshotsDocs,
     linkText: 'Disks and Snapshots',
   },
+  sshKeys: {
+    href: links.sshKeysDocs,
+    linkText: 'SSH Keys',
+  },
   storage: {
     href: links.storageDocs,
     linkText: 'Storage',