admin: add manual "Send Password reset" to accounts tab

Only appears with Reset links enabled.
Pressing this sends a PWR link to the users selected.
if one user is selected, or if one of you selected users doesn't have a
method of contact, a link is given to the admin to send to them
manually.

lang/common/nl-nl.json

@@ -9,6 +9,7 @@
         "emailAddress": "E-mailadres",
         "submit": "Verstuur",
         "success": "Succes",
+        "continue": "Doorgaan",
         "error": "Fout",
         "copy": "Kopiëer",
         "theme": "Thema",