Hi,
Do you think we need the two lines or does your script contain exactly the same lines? I think not, your template load all jQuery plugin even if not needed, this is bad because increases the load on the site (+120Kb plugins, 200Kb UI framework).
Anyway in future release we will try to remove this conflict.
search problem
Hi, this is strange and depends on your template.
I have created a menu item of type User List with search, and set this menu item to use Joomla default template. the search work (see screenshot)
You can find this menu item into "Hauptmenü" menu, we have set this with "Spezial" access (not public access).
You can test this going to
http://your.site/test
To solve this you can contact template support, or send us FTP access and if possible PHP error log.
Date popup
can explain better what happens, I tried it on "Apple" devices and I have not encountered problems, possibly clean your browser cache and try again.