[Archlinux][ibus] Install input method into Archlinux

1. Install ibus
   pacman -S ibus
2. Install input method package
   pacman -S ibus-rime
3. Edit order to show which one is the first choice of your input method.
   vim  ~/.config/ibus/rime/default.yaml
   Modify following file to another
   schema_list:
     - schema: luna_pinyin
     - schema: cangjie5
     - schema: luna_pinyin_fluency
     - schema: luna_pinyin_simp
     - schema: luna_pinyin_tw
   
   schema_list:
     - schema: cangjie5
     - schema: luna_pinyin
     - schema: luna_pinyin_fluency
     - schema: luna_pinyin_simp
     - schema: luna_pinyin_tw

Reference:

• IBus (正體中文)