Add dutch translation for "Select All On Page" (#1220)

* fixed multiSelectDropdownFilter in menus (#1160)

deleted a </div> at the end of file

* Update README.md

* Add dutch translation for "Select All On Page"

---------

Co-authored-by: Anthony Rappa <rappa819@gmail.com>
Co-authored-by: SamanthaBainCornu <104172362+SamanthaBainCornu@users.noreply.github.com>

README.md

@@ -86,6 +86,7 @@ Please e-mail anthony@rappasoft.com to report any security vulnerabilities inste
 ## Credits
 
 - [Anthony Rappa](https://github.com/rappasoft)
+- [lrljoe](https://github.com/lrljoe)
 - [All Contributors](../../contributors)
 
 ## License

resources/lang/nl.json

@@ -27,5 +27,6 @@
     "Yes": "Ja",
     "You are currently selecting all": "U selecteerde alle",
     "You are not connected to the internet.": "U bent niet verbonden met het internet.",
-    "You have selected": "U selecteerde"
-}
+    "You have selected": "U selecteerde",
+    "Select All On Page": "Alles op pagina selecteren"
+}