Fix bug eshell-prompt

When on a remote directory (i.e. ssh'd onto a separate folder), user
input would be coloured based on the status colour of the last
command.  This colouring should only apply on the actual user-prompt
component - so this commit fixes it.

RCA: caused by run-on-colouring from the ep/user-prompt i.e. no
defaulting of the face.

Emacs/.config/emacs/elisp/eshell-prompt.el

@@ -24,7 +24,7 @@
 
 ;;; Code:
 
-(defvar ep/user-prompt " λ "
+(defvar ep/user-prompt " λ>"
   "Prompt for user to input.")
 
 (defvar ep/pwd-max-len 30)
@@ -52,7 +52,8 @@
         "]"
         "\n"
         ("└─>" :foreground ,ep/pipe-colour)
-        (,ep/user-prompt :foreground ,(ep/--colour-on-last-command)))
+        (,ep/user-prompt :foreground ,(ep/--colour-on-last-command))
+        (" " default))
       (mapconcat
        #'(lambda (item)
            (thread-last