Fix bug #4069 Navigation tree height not set correctly dynamically
Translated using Weblate (Simplified Chinese)

Currently translated at 99.0% (2582 of 2609)
Merge remote-tracking branch 'origin/QA_4_0' into QA_4_0
Dynamically set tree_content's height too, bug#4069
Merge commit '9daaa1d21774f75279fa4153f97099e26240b3bd'
Merge commit '761a0aa2bfa2053e762e3b7d25d9f7376de28451'
Merge commit '2f3f1bcccb6ce82407076c1c47e4d6f917deb971'