feat: the key picker has its own border in the share popup

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

internal/ui/app/sharefiles.go

@@ -15,7 +15,6 @@ import (
 	"git.kebcloud.no/keb/lazysecrets/internal/provider"
 	"git.kebcloud.no/keb/lazysecrets/internal/ref"
 	"git.kebcloud.no/keb/lazysecrets/internal/share"
-	"git.kebcloud.no/keb/lazysecrets/internal/ui/panes"
 )
 
 // Sharing env files as an encrypted lazysecrets://share link (package
@@ -146,10 +145,13 @@ func (m *Model) pickShareKey(s sharing) tea.Cmd {
 		return m.seal(s) // the picker showed what's shared
 	}
 	m.search.pickTitle = shareTitle(s)
-	m.search.pickLines = append(m.sharedFiles(s), "",
-		panes.TitleStyle(m.st, true).Render("Pick a secret to encrypt with"),
-		m.st.Muted.Render("The recipient needs read access to it to decrypt the files. Its value isn't"),
-		m.st.Muted.Render("shown or put in the link. share.key sets one for a repo, or for all."))
+	m.search.pickLines = m.sharedFiles(s)
+	m.search.pickHeading = "Pick a secret to encrypt with"
+	m.search.pickHelp = []string{
+		m.st.Muted.Render("The recipient needs read access to it to decrypt the files. Its value"),
+		m.st.Muted.Render("isn't shown or put in the link. share.key sets one for a repo, or for all."),
+	}
+	m.search.input.SetWidth(searchWidth(m.w) - 10) // inside the picker's border
 	m.fillSearch(false)
 	return tea.Batch(cmd, m.searchLoads())
 }