hotfix friendlist option checkbox
fix folder icon
remove "What this" (?) button
correct typo
use signals instead of flags

Revert parts of "hotfix friendlist option checkbox"
try to implement context menu
fix crash if try to fetch model index
add some context action
cleanup and more actions
remove modeltest
extract api for client actions
Revert "extract api for client actions"

This reverts commit 7943eb39b7d04b34326ec6e8b98d20d5f07bad11.
format
extract client api calls (without formating)