UX Enhancements for Worldmap: Allow view messages that populate a map point, allow localizing names of countries

## What?

Proposing 2 UX enhancements for the Worldmap widget:

1. Allow clicking on the number to view the messages that make up the map point. Similar to how the "play" button is used on other widgets to allow drilling down and inspecting the data
2. Allow users to enable/configure localization of country names display on world map. For example, all names are displayed in the users language of preference. Currently country names are in the language of the displayed country

## Why?

1. Allow the worldmap widget to behave consistently with other parts of graylog and allow transparency of data and further investigation into data populating a data point on a widget
2. Provide a better user experience for the user to be able to read/understand the country names in a language they can read

Please let me know if there are any questions. This is requested by a strategic customer.