refactor(.scripts): cleanup sh (#252)

- proper escaping
- use `!#/usr/bin/env sh` for broader compliance

.scripts/init_env.sh

@@ -1,22 +1,22 @@
-#!/bin/sh
+#!/usr/bin/env sh
 # Note: Script must be run like this `. .init_env.sh` to setup variables for your current shell
 # define relative paths
 
-DistPath="tauri/test/fixture/dist"
-SrcPath="tauri/test/fixture/src-tauri"
+DistPath='tauri/test/fixture/dist'
+SrcPath='tauri/test/fixture/src-tauri'
 
-echo "Setting up enviromental Variables"
+echo "Setting up enviroment Variables"
 
 # check if relative paths exist
-if [ -d "$DistPath" ]||[ -d "$SrcPath" ]
+if [ -d "${DistPath}" ]||[ -d "${SrcPath}" ]
     then
         # Convert to absolute paths
-        DistPath="$(cd "$DistPath" && pwd -P)"
-        SrcPath="$(cd "$SrcPath" && pwd -P)"
+        DistPath="$(cd "${DistPath}" && pwd -P)"
+        SrcPath="$(cd "${SrcPath}" && pwd -P)"
 
         # export enviromental variables 
-        export TAURI_DIST_DIR=$DistPath
-        export TAURI_DIR=$SrcPath
+        export TAURI_DIST_DIR=${DistPath}
+        export TAURI_DIR=${SrcPath}
         echo "Variables set, ready to work!"
     
 else