Fcitx 5.0.19

[Weng Xuetian]

Hi all,
Fcitx 5.0.19 and updates of other packages are now available.

The updates contain mainly bug fixes. Devs mainly focused on on-screen
keyboard support in frameworks for 5.1, stay tuned!

fcitx5 5.0.19
classicui: support blur mask on kwin (x11&wayland)
xim: fix preedit start callback

fcitx5-chinese-addons 5.0.15
table: Add prediction support for table.
pinyin: Add support for disabling a set of character in extb and beyond.

libime 1.0.14
Update language model data and dictionary
Add support for libime_history to compile text to binary data.

fcitx5-configtool 5.0.15
fix the plasma theme generator reloading and add support for blur mask

fcitx5-bamboo 1.0.1
fix the build for the 32-bit system.