[apps/cmm] add new proxy for https sources (#277)

Deployed new https proxy for WebView and Downloader.
Made it configurable through /sys/settings/app.ini.

Reviewed-on: KolibriOS/kolibrios#277
Reviewed-by: Mikhail Frolov <mixa.frolov2003@gmail.com>
Co-authored-by: Burer <burer@kolibrios.org>
Co-committed-by: Burer <burer@kolibrios.org>

data/common/settings/app.ini

@@ -22,3 +22,5 @@ ToggleBar=Tab
 path=/usbhd0/1/kolibri.img
 autoclose=0
 
+[WebView]
+proxy=http://proxy.kolibrios.org:82/?site=