update starship config

config/starship.toml

@@ -14,6 +14,7 @@ $jobs\
 $shlvl\
 $status\
 $shell\
+$nix_shell\
 $character"""
 
 [status]
@@ -21,10 +22,11 @@ disabled = false
 symbol = "x"
 
 [character]
-#vicmd_symbol = "[❮](bold bg:red)"
+success_symbol = '[\$](bold green)'
+error_symbol = '[\$](bold red)'
 
 [shell]
-disabled = false
+disabled = true
 bash_indicator = "[bsh](yellow italic)"
 zsh_indicator = "[zsh](blue italic)"
 fish_indicator = "[fsh](green italic)"
@@ -54,4 +56,8 @@ read_only =" "
 
 [shlvl]
 disabled = false
-symbol = "↕️"
+symbol = "#"
+
+[nix_shell]
+format = "[$symbol]($style) "
+symbol = "*"