Memento Mori New Tab

Replace the default new tab with a timeline showing how many weeks of your life you have consumed already - and how many are left!

Memento Mori is Latin for 'remember that you must die'. It's used as a reminder of the inevitability of death. Rather than be morbid it's aimed at reminding you to make the most of the time you have left and live more in the moment - YOLO!

The countdown is shown over the top of (customisable) images, with optional inspiring quotes displayed too. This update also adds the ability to add events to the timeline.

Settings can be used to customise:
* background image
* add /edit quotes (new)
* add /edit key events (new)
* show / hide title
* show / hide quotes
* customise text colour (new)

Future iterations will add these features:
* add extra languages
* search Unsplash images directly from extension
* upload your own images

# NOTES

## Images
Currently images are limited to displaying images using a URL. This is in part due to browser restrictions in story image data. Future version may allow the user to "upload" their own images.
Future version may also allow user to search for Unsplash images from within the extension and apply them automatically (without the need to paste the URL)

## ChangeLog
1.0.0.0 Improve calculations. Add editable quotes/events. Make the number of years / columns editable.

0.0.0.7 - Fix bug in calculations
0.0.0.6 - Improve responsiveness, date validation
0.0.0.5 - Improve Initialisation
0.0.0.4 - Support custom images; improve responsiveness
0.0.0.3 - Add more image options
0.0.0.2 - Improve Initialisation
0.0.0.1 - Initial Release