[F2V] Files views API + navigation + base structure #30070

/**
 * Open a file on the files app (after init)
 *
 * @param {string} path the path to the file or folder
 * @param {string} [view = 'main'] the view to open the files into
 * @return {Promise}
 */
OCA.Files.open(path: string, view: string = 'main'): Promise

// Creates a new view, sanitize data, throw if invalid or missing prop
const view = new OCA.Files.View({...})

/**
 * Register a new view
 *
 * @param {View} view the view to register
 * @throw Exception if already registered under same id
 */
OCA.Files.Views.register(view)

/**
 * Return the list of registered valid views * @return {View[]}
 */
OCA.Files.Views.get(): View[]

{
	id: 'files',
	name: 'All files',
	getFiles([path = '/']): FileInfo[],
	icon: (VueComponent|string): 'icon-files',
	order: 1,
	columns: [
		{
			name: t('files', 'Size'),
			id: 'size',
			property: 'size',
			[sortFunction: (FileInfoA, FileInfoB) => integer],
			[summary: (FileInfo[]) => string],
			[tooltip: (FileInfo) => string],
		}
		// ... other columns
	],
	[emptyView: VueComponent], // Like an EmptyContent
	[parent: 'id'],
	[sticky: false],
}