Weather lat/long is configured at global level; should be at component and service level

[snoyes]

If you wish to show the weather_panel twice, there is no way to configure it to show weather from different places.

If the location is made part of the service, then it will overwrite the cached data. Each service instance will need its own cache file, and each component instance will need to know which one of those cache files to query.

Use cases:

• Amir lives in London and is planning a vacation to Paris. He wants to know how to pack and also what to wear on the day he leaves.
• Anna is a space enthusiast in Iowa. She wants to know if an anticipated rocket launch at Cape Canaveral is likely to be postponed due to bad weather. If the launch is likely to take place, she wants to know if she should set up her watch party outside on the patio or inside the house.
• Tony keeps exotic fish. He wants to program their terrarium environmental controls to mimic their native habitats, and is using home_dashboard to verify that the lights turn on at sunrise and dim when it is overcast in Fiji.

[snoyes]

A similar issue exists for the clock. For example, the start and end of my work shift are set by the current time in Helsinki. The U.S. and Finland start and end daylight savings time on different days, so for two weeks every spring and again every fall, I'm supposed to sign in to work an hour earlier or later than usual. It would therefore be useful to have the dashboard display the current time in two different timezones (which are not a fixed number of hours apart).

[aalcala07]

As of v0.2.0 it is now possible to get weather data for multiple locations. See https://homedashboard.aalcala.com/#getting-weather-for-multiple-locations