* changing naming of individual mout path property
* adding input/output for the new custom mount points
* ui integration of custom mount point
* removing unused variable
* Improving UX
* Simplify mountPathProperty and implement its usage
* reverting renaming of Properties concerning the usage of own mount point (rescheduled for 1.5.0)
* changing displayed message when no mount path given
* fixing ui error
* applying suggestion of comment https://github.com/cryptomator/cryptomator/pull/797/files/7338fda41858942ee17daf436979e2a69114a108#r248254180
Armin SchrenkandGitHub
