fix(fish) improve git prompt

fish/.config/fish/fish_variables

@@ -1,5 +1,6 @@
 # This file contains fish universal variable definitions.
 # VERSION: 3.0
+SETUVAR __fish_git_prompt_char_dirtystate:\u2718
 SETUVAR __fish_init_2_39_8:\x1d
 SETUVAR __fish_init_2_3_0:\x1d
 SETUVAR __fish_init_3_x:\x1d

fish/.config/fish/functions/fish_prompt.fish

@@ -37,7 +37,7 @@ function fish_prompt --description 'Write out the prompt'
 
   echo -n -s (__bcarlin_prompt_venv)
   echo -n -s "$USER" @ (prompt_hostname) ' ' $_pwd
-  echo -n -s (__fish_git_prompt)
+  echo -n -s (fish_git_prompt)
   if test $last_status -ne 0
       echo -n -s (set_color red --bold)" [$last_status]" (set_color normal)
   end