Fix auto mention on person detail

src/ui/ForegroundButtons.svelte

@@ -1,4 +1,5 @@
 <script lang="ts">
+  import {nip19} from "nostr-tools"
   import user from "src/agent/user"
   import {modal, location} from "src/app/ui"
 
@@ -7,7 +8,8 @@
   const {canPublish} = user
 
   const createNote = () => {
-    const pubkey = null // TODO use $location.pathname
+    const matches = $location.pathname.match(/people\/(npub1[0-9a-z]+)/)
+    const pubkey = matches ? nip19.decode(matches[1]).data : null
 
     modal.set({type: "note/create", pubkey})
   }

src/ui/partials/Compose.svelte

@@ -43,7 +43,7 @@
     return {selection, node, offset, word}
   }
 
-  const autocomplete = ({person}) => {
+  const autocomplete = ({person, force = false}) => {
     const {selection, node, offset, word} = getInfo()
 
     const annotate = (prefix, text, value) => {
@@ -70,12 +70,12 @@
     }
 
     // Mentions
-    if (word.length > 1 && word.startsWith("@")) {
+    if ((force || word.length > 1) && word.startsWith("@")) {
       annotate("@", displayPerson(person).trim(), pubkeyEncoder.encode(person.pubkey))
     }
 
     // Topics
-    if (word.length > 1 && word.startsWith("#")) {
+    if ((force || word.length > 1) && word.startsWith("#")) {
       annotate("#", word.slice(1), word.slice(1))
     }
 
@@ -139,7 +139,7 @@
     selection.getRangeAt(0).insertNode(spaceNode)
     selection.collapse(input, 1)
 
-    autocomplete({person})
+    autocomplete({person, force: true})
   }
 
   const createNewLines = (n = 1) => {