move copy CID to record submenu

src/components/navbar.tsx

···
 import Tooltip from "./tooltip";
 
 export const [pds, setPDS] = createSignal<string>();
-export const [cid, setCID] = createSignal<string>();
 export const [isLabeler, setIsLabeler] = createSignal(false);
 
 const NavBar = (props: { params: Params }) => {
···
                 copyContent={`at://${props.params.repo}${props.params.collection ? `/${props.params.collection}` : ""}${props.params.rkey ? `/${props.params.rkey}` : ""}`}
                 label="Copy AT URI"
               />
-            </Show>
-            <Show when={props.params.rkey && cid()}>
-              <CopyMenu copyContent={cid()!} label="Copy CID" />
             </Show>
           </DropdownMenu>
         </MenuProvider>

src/views/record.tsx

···
 import { JSONValue } from "../components/json.jsx";
 import { agent } from "../components/login.jsx";
 import { Modal } from "../components/modal.jsx";
-import { pds, setCID } from "../components/navbar.jsx";
+import { pds } from "../components/navbar.jsx";
 import Tooltip from "../components/tooltip.jsx";
 import { setNotif } from "../layout.jsx";
 import { didDocCache, resolveLexiconAuthority, resolvePDS } from "../utils/api.js";
···
   let rpc: Client;
 
   const fetchRecord = async () => {
-    setCID(undefined);
     setValidRecord(undefined);
     setValidSchema(undefined);
     setLexiconUri(undefined);
···
       setNotice(res.data.error);
       throw new Error(res.data.error);
     }
-    setCID(res.data.cid);
     setExternalLink(checkUri(res.data.uri, res.data.value));
     resolveLexicon(params.collection as Nsid);
     verify(res.data);
···
                   label="Copy record"
                   icon="lucide--copy"
                 />
+                <Show when={record()?.cid}>
+                  {(cid) => <CopyMenu copyContent={cid()} label="Copy CID" icon="lucide--copy" />}
+                </Show>
                 <Show when={lexiconUri()}>
                   <NavMenu
                     href={`/${lexiconUri()}`}