Dialog should allow jpeg extension too

[noone-silent]

Imagine/modules/backend/menu-actions.ts

Lines 31 to 45 in f68ae12

	dialog.showOpenDialog({
	title: __('choose_images'),
	filters: [{
	name: 'Images',
	extensions: [
	'jpg',
	'png',
	],
	}],
	properties: properties as any,
	}, filePaths => {
	app.receiveFiles(filePaths)
	})
	}