fix(app): revert unifiedCompact toolbar style

Was a genuinely shorter toolbar height, not "unified minus the
title" as intended — made the whole toolbar look slim. Superseded by
the empty-navigationTitle fix in the previous commit anyway.

Outpost/OutpostApp.swift

@@ -35,14 +35,6 @@ struct OutpostApp: App {
                 #endif
         }
         #if os(macOS)
-        // On macOS's unified toolbar, the native title text renders in the
-        // same row as a `.navigation`-placed toolbar item — with both set to
-        // the same collection/document name, it visibly duplicated, with the
-        // system back button sandwiched between the two. `.navigationTitle`
-        // stays set (for the Window menu / Mission Control), just hidden here.
-        // `.unified` (not `.unifiedCompact`) keeps the toolbar at normal
-        // height — compact is a shorter style, not merely "unified minus title".
-        .windowToolbarStyle(.unified(showsTitle: false))
         .commands {
             CommandGroup(replacing: .appInfo) {
                 Button("About Outpost") {