Add passky importer (#4253)

Create types for passky export format
Add test files
Write tests for passky-json-importer
Write importer for passky export
Register 'passkyjson' with `importOptions`
Import/register passky-json-importer with import.service
Add instructions on how to export from Passky

libs/common/src/enums/importOptions.ts

@@ -67,6 +67,7 @@ export const regularImportOptions = [
   { id: "encryptrcsv", name: "Encryptr (csv)" },
   { id: "yoticsv", name: "Yoti (csv)" },
   { id: "nordpasscsv", name: "Nordpass (csv)" },
+  { id: "passkyjson", name: "Passky (json)" },
 ] as const;
 
 export type ImportType =