Linux: Remove low resolution icons

[guihkx]

This is just an aesthetical change.

Long story short:

AppImages have a default icon. For some reason, our AppImage-making tool always chooses the lowest resolution icon we have (16x16) as the default one, and there's no way to specify a different icon (AFAIK).

End result: Our AppImage icon looks really bad on file managers that support previewing AppImage files via libappimage, like Dolphin.

Quick and dirty solution: Keep only icons that are 128x128 and above.

Comparison:

[nuttyartist]

Won't we need the lower ones for the system tray?

[guihkx]

No. We actually use the 1024x1024 icon for the tray icon here:

notes/src/mainwindow.cpp

Lines 522 to 535 in 70ee81f

	void MainWindow::setupTrayIcon()
	{
	#if !defined(Q_OS_MAC)
	auto trayIconMenu = new QMenu(this);
	trayIconMenu->addAction(m_restoreAction);
	trayIconMenu->addSeparator();
	trayIconMenu->addAction(m_quitAction);
	m_trayIcon->setContextMenu(trayIconMenu);
	#endif
	QIcon icon(QStringLiteral(":images/notes_system_tray_icon.png"));
	m_trayIcon->setIcon(icon);
	m_trayIcon->show();
	}

And I think Qt takes care of resizing the icon for us.

[nuttyartist]

Okay 👍