A way to lock CherryTree font size so that it cannot be changed by touchpad gestures or other means

[TESTER-sec]

Is your feature request related to a problem? Please describe. When typing in Windows 10\11, brushing against the touchpad on a laptop can result in the CherryTree font size increasing or decreasing.

[Disabling touchpad gestures is not a practical solution because it is needed for functionality outside of CherryTree.}

Describe the solution you'd like A way to lock the font size in all CherryTree documents so that touchpad gestures or key combos cannot enlarge\decrease the font size.

Alternatively, a key combination to set the font size in a .ctb document back to the default values.

[TESTER-sec]

Nobody is using touchscreen or touchpad when working with CherryTree.

Accidentally brushing against the touchpad on a laptop can cause the CherryTree font size to increase or decrease.