fix(termsupport): fix pwd report for Konsole (#11730)

The Konsole terminal shows an error if the host is provided in the
OSC 7 sequence.

Fixes #11730

lib/termsupport.zsh

@@ -150,8 +150,11 @@ function omz_termsupport_cwd {
   URL_HOST="$(omz_urlencode -P $HOST)" || return 1
   URL_PATH="$(omz_urlencode -P $PWD)" || return 1
 
+  # Konsole errors if the HOST is provided
+  [[ -z "$KONSOLE_VERSION" ]] || URL_HOST=""
+
   # common control sequence (OSC 7) to set current host and path
-  printf "\e]7;%s\a" "file://${URL_HOST}${URL_PATH}"
+  printf "\e]7;file://%s%s\e\\" "${URL_HOST}" "${URL_PATH}"
 }
 
 # Use a precmd hook instead of a chpwd hook to avoid contaminating output