feat: fetch home updates w/ limit

scripts/motd/30-home-updates

@@ -2,6 +2,21 @@
 
 source "$HOME/.dotfiles/plugins/colors.plugin.zsh"
 
+updfile="$HOME/.cache/.df_last_update"
+touch $updfile
+lastupdate=$(cat $updfile)
+if [[ -z $lastupdate ]]; then
+  lastupdate=0
+fi
+
+# 1 day
+timeout=86400
+if [[ $(date +%s) -gt $((lastupdate + $timeout)) ]]; then
+  echo_yellow "Checking for updates..."
+  git -C "$HOME/.dotfiles" fetch
+  echo $(date +%s) > $updfile
+fi
+
 loc=$(git -C $HOME/.dotfiles rev-parse HEAD)
 rem=$(git -C $HOME/.dotfiles rev-parse @{u})