ChatMessage: Fix colors in dark theme

Probably something new appears in scope in newer Kirigami import versions, so revert back to 2.0 for now.
Status Job ID Name Coverage
  Test
failed #22961
allowed to fail
clazy

00:00:26

passed #22962
qmllint

00:01:44

 
  Build
passed #22966
archlinux

00:01:28

passed #22965
debian-sid

00:01:20

passed #22964
neon-bionic

00:01:24

passed #22963
ubuntu-trusty

00:01:11

 
  Deploy
passed #22969
allowed to fail
android

00:09:19

passed #22967
allowed to fail
linux-appimage

00:09:30

passed #22970
allowed to fail
mac-osxcross

00:06:15

passed #22968
allowed to fail
windows-mxe

00:05:09

 
Name Stage Failure
failed
clazy Test
  CMake will not be able to correctly generate this project.
Call Stack (most recent call first):
CMakeLists.txt:10 (project)


-- Configuring incomplete, errors occurred!
See also "/builds/kde/kaidan/build/CMakeFiles/CMakeOutput.log".
See also "/builds/kde/kaidan/build/CMakeFiles/CMakeError.log".
ERROR: Job failed: exit code 1