[UPDATE][SHELL] BAT_PAGER variable in profile

I don't want my pager to clobber my terminal once I'm done looking at
whatever I was looking at.

This also means that I can remove its definition from the `batman`
script.

scripts/batman

@@ -2,7 +2,6 @@
 
 export MANPAGER='sh -c "col -bx | bat --language man --style grid"'
 export MANROFFOPT='-c'
-export BAT_PAGER="$PAGER $LESS"
 
 command man "$@"
 exit $?

shell/.profile

@@ -28,6 +28,9 @@ export LESS_TERMCAP_se=$'\E[0m'        # reset reverse video
 export LESS_TERMCAP_us=$'\E[1;32m'     # begin underline
 export LESS_TERMCAP_ue=$'\E[0m'        # reset underline
 
+# Use my preferred pager settings for bat
+export BAT_PAGER="$PAGER $LESS"
+
 # Rust installation
 export PATH="$HOME/.cargo/bin:$PATH"