fix(scripts): bash shebang

packages/scripts/fkill.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 if [ "$UID" != "0" ]; then
     pid=$(ps -f -u "$UID" | sed 1d | fzf -m | awk '{print $2}')

packages/scripts/n.nix

@@ -1,2 +0,0 @@
-{ writeShellScriptBin }:
-writeShellScriptBin "n" ''nix-shell -p "$1" --run "''${2:-$1}"''

packages/scripts/vg.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 file="$(rg "$@" | fzf -0 -1 | awk -F: '{print $1}')"
 
 if [[ -n $file ]]