Display dialog with conditions details

[orontee]

Context

I sometime wants to read the UV index or compare raw and felt temperatures. It's impossible to display all information on the daily forecast nor the hourly forecast.

Analysis

Display a dialog with condition details. Possible for both daily and hourly forecast.

Just start with daily forecast.

TODO

• [ ] Wind direction
• ~Moon phase~ (See #42)
• [x] Dew point
• ~Replace temperatures table with a plot~ (non-sense since no time for min and max and no felt extrema)
• [ ] Weather icon
• [ ] Draw separators, not empty lines
• [ ] Close (or home?) button
• [ ] Translations

Remark

A bug in current deserialization of felt temperatures will explain users seeing wrong values if they start the application with an up-to-date cache.

[orontee]

New version, implemented as a modal widget.

Already working, most wanted information is present (wind direction, dew point and moon phase are missing), but still needs some style improvement.