Refine Design of Settings Page

[casaout]

ollow-up of #352

• Wording Suggestions for active times

• “Define your ..” --> “Define your active times for each day of the week, such as the time you usually work or study. Outside these times, no experience sampling pop-up is shown.” (can we show the second sentence only if experience sampling is enabled? - “not working” --> “Not active on this device”

• The left side could be visually a bit more highlighted, so it’s clearer these are options.
  Suggestion:

• left bar in a slightly different color?

• Maybe an icon and a background color, similar to FT?

• Subpages are not aligned the same:

[royru]

Pushed some updates here: d7ad622

The navigation bar certainly doesn't look good, but better :) We will have to talk about icons next time we meet in person, @casaout

[casaout]

The navigation bar certainly doesn't look good, but better :) We will have to talk about icons next time we meet in person, @casaout

I already find it much better, thanks :)

The simplest would maybe just be to use unicode emoticons 🕑 and ℹ️/📝?