Revert "Disable CamelCursor by default"

This reverts commit 377eab4b

@albertvaka

“nobody else does something” is not a good reason for anything.

This makes editing file names super annoying.

foo.cpp

Press Ctrl+Backspace, wanting to change it to foo.h. Instead the entire line disappears now. This is unacceptable.

It also makes dealing with camel case class names annoying. KdeConnectDevice, press Ctrl+Backspace, it’s gone now, instead of being KdeConnect.