Use less ?-operators to improve maintainability

[topiasv]

TenKey_Flick.qml and others make heavy use of the ?-operators that make the code difficult to maintain. Usually when the code relies too much on if-else kind of structures, it is doing something inefficiently. Moreover, the ?-operator can actually make it even harder to read than a regular if-else structure. I suggest we find a proper solution for this.

For the TenKey text label for instance we probably only need 3 or 4 different modes and they could be combined somehow more conveniently. Perhaps set up boolean values for each case that get updated when certain conditions are met. They could be hooked up with signals and slots if needed.