Fixed password resetting for local users

datastore/src/main/java/net/jami/datastore/dao/UserDao.java

...in/java/net/jami/jams/common/utils/PasswordGenerator.java

...ava/net/jami/jams/common/utils/PasswordGeneratorTest.java

...ami/jams/server/servlets/api/admin/users/UserServlet.java

.../jami/jams/server/servlets/api/auth/user/UserServlet.java

jams-server/src/main/resources/webapp/js/api.js

jams-server/src/main/resources/webapp/js/new-password.js

jams-server/src/main/resources/webapp/js/search.js

jams-server/src/main/resources/webapp/js/user.js