Revert "Don't put taskwarrior commands to history"

This reverts commit 55a4088d807c5ca0552e89c3240ec1d3c88842f6.

Turns out this makes it too hard to explore and learn the vast potentials
of taskwarrior CLI.

dotfiles/bash/main.bashrc

 
 HISTIGNORE="$HISTIGNORE:ls:ll:la:cd"
 HISTIGNORE="$HISTIGNORE:git dc:git st"
-HISTIGNORE="$HISTIGNORE:task *:git dc:git st"
 #export HISTIGNORE="$HISTIGNORE:se *:sc *"
 HISTSIZE=-1
 HISTFILESIZE=100000