Add compile bash script

compile.bat

@@ -13,9 +13,8 @@ if %errorlevel% neq 0 (
 
 xcopy /y mikupad.html project >NUL
 
-pushd .
 cd project
 call npm install
 call npm start build
 copy /y .\dist\mikupad.html ..\mikupad_compiled.html
-popd
+cd ..

compile.sh

@@ -0,0 +1,19 @@
+#!/bin/bash
+
+if ! command -v node > /dev/null 2>&1; then
+    echo "Node.js is not installed."
+    exit 1
+fi
+
+if ! command -v npm > /dev/null 2>&1; then
+    echo "npm is not installed."
+    exit 1
+fi
+
+cp -f mikupad.html project
+
+cd project
+npm install
+npm run build
+cp -f ./dist/mikupad.html ../mikupad_compiled.html
+cd ..