feat: make zsh prompt better

dot_oh-my-zsh/custom/themes/lavender-dimmed.zsh-theme

@@ -135,7 +135,6 @@ prompt_segment() {
 
 # End the prompt, closing any open segments
 prompt_end() {
-  local wrap_bg=$CURRENT_BG
   if [[ -n $CURRENT_BG ]]; then
     echo -n " %{%k%F{$CURRENT_BG}%}$SEGMENT_SEPARATOR"
   else
@@ -143,9 +142,7 @@ prompt_end() {
   fi
   echo -n "%{%f%}"
   echo -n $'\n'
-  if [[ -n $wrap_bg ]]; then
-    echo -n "%{%F{$wrap_bg}%}╰─%{%f%} "
-  fi
+  echo -n "%{%F{$AGNOSTER_CORNER_FG}%}╰─%{%f%} "
   if [[ $RETVAL -ne 0 ]]; then
     echo -n "%{%F{$AGNOSTER_STATUS_RETVAL_FG}%}❯%{%f%} "
   else