[14] - Change layout and add translatable strings

[jordanharris-6]

Description

14 - This PR changes the layout how the release notes are displayed within the admin

Change Log

• Adds a util function to get the formatted date based on the site options
• Refactors the widget and item renders so to match the requested layout

Steps to test

Add a new release note using the menu on the left
add some content to the release note, a version number and a date its going live in the right menu.
Publish the release
Click the version top right of the screen
check the format matches what it says in the ticket

Open a new tab and go to settings > general
find the date option and change it
go back to the release note you have created and refresh the format of the date should have changed now.

Screenshots/Videos

http://bigbite.im/v/20Vcvr

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• Any dependent changes have been merged and published in downstream modules

[johnmunster]

Adding these here, as Jordan asked me to look at this PR, and this was some of my feedback earlier in the development process.
http://bigbite.im/i/IAj3ar
It looks better than it did. Couple of suggestions:
Remove the square brackets (I think I only put them in as placeholders)
Change the date format on the release date to dd/mm/yyyy
Put the version in brackets, so it reads release title (version x.x.x)

[johnmunster]

Have since seen the final implementation and I am happy with the new look.