feat: a status pane, like lazygit's: version, updates, accounts, files and links

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

internal/ui/app/update.go

@@ -155,15 +155,3 @@ func (m *Model) handleInstalled(msg installedMsg) {
 	m.updated = msg.release.Tag
 	m.flash = done("updated to lazysecrets " + msg.release.Tag + " · restart lazysecrets to use it")
 }
-
-// updateLabel is the version's suffix in the footer: a newer release to
-// update to, or the one installed and waiting for a restart.
-func (m Model) updateLabel() string {
-	switch {
-	case m.updated != "":
-		return " → " + m.updated + " (restart)"
-	case m.newer != nil:
-		return " ↑ " + m.newer.Tag + withKey(m.keys.Update, " %s")
-	}
-	return ""
-}