Add an option to always show mishor sunrise

[Elyahu41]

Even if chaitables is implemented in the website, there should always be an option to always show mishor sunrise regardless whether or not there is a time available for visible sunrise. Many kehilot use this time since they do not use chaitables.com and we want people to see it as well to not be overwhelmed by other people saying the time for sunrise is different.

As mentioned in issue #15 , there should be an option/setting to allow the user to always see mishor sunrise.