fix(fileActions): improve typing and add silent actions

Signed-off-by: John Molakvoæ <skjnldsv@protonmail.com>

lib/fileAction.ts

@@ -34,16 +34,18 @@ interface FileActionData {
 	enabled?: (files: Node[], view) => boolean
 	/**
 	 * Function executed on single file action
-	 * @returns true if the action was executed, false otherwise
+	 * @returns true if the action was executed successfully,
+	 * false otherwise and null if the action is silent/undefined.
 	 * @throws Error if the action failed
 	 */
-	exec: (file: Node, view) => Promise<boolean>,
+	exec: (file: Node, view, dir: string) => Promise<boolean|null>,
 	/**
 	 * Function executed on multiple files action
-	 * @returns true if the action was executed, false otherwise
+	 * @returns true if the action was executed successfully,
+	 * false otherwise and null if the action is silent/undefined.
 	 * @throws Error if the action failed
 	 */
-	execBatch?: (files: Node[], view) => Promise<boolean[]>
+	execBatch?: (files: Node[], view, dir: string) => Promise<(boolean|null)[]>
 	/** This action order in the list */
 	order?: number,
 	/** Make this action the default */