shell: add a4i alias and set MANPATH

shell/.profile

@@ -17,18 +17,22 @@ export VISUAL=nvim
 if [ -n "$BASH_VERSION" ]; then
     # include .bashrc if it exists
     if [ -f "$HOME/.bashrc" ]; then
-	. "$HOME/.bashrc"
+        . "$HOME/.bashrc"
     fi
 fi
 
 for dir in ~/.cargo/bin ~/go/bin ~/.local/bin ~/bin; do
     if [ -d "$dir" ]; then
-	PATH="$dir:$PATH"
+        PATH="$dir:$PATH"
     fi
 done
 
 export PATH
 
+if [ -d ~/.local/share/man ]; then
+    export MANPATH="$HOME/.local/share/man:$MANPATH"
+fi
+
 # start X or Hyprland at login
 if [ -z "$DISPLAY" -a -z "$WAYLAND_DISPLAY" -a "$(tty)" = /dev/tty1 ]; then
     if which /usr/bin/sx > /dev/null; then