Thing- and TriggerChannel- pickers with footer text

[d51x]

The problem

When you have many things and some channels with only names then it is very difficult to looking for a thing / channel when creating/editing rules/scripts

My suggestion

• modify Thing picker to show locations for things in it. It's allow simplify navigate trough list of things
• modify TriggerChannel picker to show channels description for every channel if has. It gives me a better understanding of what kind of channel it is

But these modifications are only available with redefining of renderItem method of f7SmartSelect, because <select><option> doesn't allow any html-tags and makes a plain text from html

My PR is #2129

Thing Picker with location in footer

TriggerChannel picker with channel description in footer