chore(fish): simplified fish config to be the "same" as my zsh config

.config/fish/conf.d/prompt.fish

@@ -0,0 +1,33 @@
+function fish_prompt --description 'Write out the prompt'
+    set -l last_status $status
+    set -l normal (set_color $fish_color_normal)
+    set -l status_color (set_color brgreen)
+    set -l cwd_color (set_color $fish_color_cwd)
+    set -l vcs_color (set_color yellow)
+    set -l prompt_status ""
+
+    # Since we display the prompt on a new line allow the directory names to be longer.
+    set -q fish_prompt_pwd_dir_length
+    or set -lx fish_prompt_pwd_dir_length 0
+
+    # Color the prompt in red on error
+    if test $last_status -ne 0
+        set status_color (set_color $fish_color_error)
+        set prompt_status $status_color "[" $last_status "]" $normal
+    end
+
+    echo -s $cwd_color (prompt_pwd) $vcs_color (fish_vcs_prompt) $normal ' ' $prompt_status
+    echo -n -s $status_color '❯' ' ' $normal
+end
+
+function fish_mode_prompt
+  switch $fish_bind_mode
+    case default
+      set_color --bold red
+      echo '[N] '
+    case visual
+      set_color --bold brmagenta
+      echo '[V] '
+  end
+  set_color normal
+end