Simplify application integration tests

apps/vectorcraft/src/app.rs

@@ -1,5 +1,5 @@
 use super::prefs::save_prefs;
-use super::*;
+use super::{App, VectorcraftApp, file_access, window};
 
 /// The parts of [`App::raw_input_hook`] that every window needs, for the OS windows of floating
 /// panels: a click or Escape that closes the macOS menu bar's open menu, and the pen barrel

apps/vectorcraft/src/clipboard.rs

@@ -309,7 +309,7 @@ mod win {
 mod portable {
     use std::borrow::Cow;
 
-    use super::*;
+    use super::{BITMAP, Flavour, PNG, SystemClipboard, TEXT, copied_file, decode_png, png_flavour, text_of};
 
     /// What our last write put on the clipboard.
     enum Ours {

apps/vectorcraft/src/host_services.rs

@@ -1,4 +1,4 @@
-use super::*;
+use super::{ClipboardProbeFactory, FilePick, PickRequest, Services, clipboard, cursor_theme, fileio, portal_save, printing, tablet};
 
 /// The window file dialogs belong to.
 pub(crate) type Parent = Option<std::sync::Arc<winit::window::Window>>;

apps/vectorcraft/src/prefs.rs

@@ -1,4 +1,4 @@
-use super::*;
+use super::{VectorcraftApp, fileio, prefs_dir};
 
 /// Where UI preferences live: ~/Library/Application Support/VectorCraft (macOS),
 /// %APPDATA%\VectorCraft (Windows), $XDG_CONFIG_HOME or ~/.config/vectorcraft (Linux).

apps/vectorcraft/src/titlebar.rs

@@ -1,4 +1,4 @@
-use super::*;
+use super::{window, xwayland};
 
 /// The window, Dock, taskbar and app-switcher icon (`assets/app-icon/`, see its README). macOS gets
 /// the version with Apple's transparent margin; elsewhere the full-bleed tile. The app ID matches