[zsh] Simplify shared config

clone_and_link.sh

@@ -9,7 +9,8 @@
 
 if [[ $1 == "shared" ]]; then
     ln -Tsfv $PWD/zsh $HOME/.zsh
-    ln -Tsfv ~/.zsh/.zshrc_shared $HOME/.zshrc
+    ln -Tsfv ~/.zsh/.zshrc $HOME/.zshrc
+    touch ~/.zsh/.shared_config
     ln -Tsfv $PWD/tmux $HOME/.tmux
     ln -Tsfv ~/.tmux/.tmux.conf $HOME/.tmux.conf
     mkdir -p $HOME/.config

zsh/.zshrc

@@ -60,7 +60,11 @@ ZLE_RPROMPT_INDENT=0
 
 # To customize prompt, run `p10k configure` or edit ~/dotfiles/zsh/.p10k.zsh.
 function load_p10k() {
+    if zmodload zsh/terminfo && (( terminfo[colors] >= 256 )) && [[ ! -f ~/.zsh/.shared_config ]]; then
       [[ ! -f ~/dotfiles/zsh/.p10k.zsh ]] || source ~/dotfiles/zsh/.p10k.zsh
+    else
+      [[ ! -f ~/dotfiles/zsh/.p10k_shared.zsh ]] || source ~/dotfiles/zsh/.p10k_shared.zsh
+    fi
 }
 load_p10k
 export LANG="en_US.UTF-8"