build: add easy linux build script

Author: hazzuk

build.sh

@@ -0,0 +1,26 @@
+#!/bin/bash
+# Script to build the webapp locally on Linux
+
+set -e
+
+# check if the 'webapp' folder exists and remove it
+WEBAPP_PATH="$(pwd)/webapp"
+if [ -d "$WEBAPP_PATH" ]; then
+    rm -rf "$WEBAPP_PATH"
+    echo "Deleted existing webapp folder."
+fi
+
+# install dependencies using Yarn
+yarn install
+echo "Yarn install completed."
+
+# build the app
+yarn build
+
+# copy LATEST.md to webapp
+cp "$(pwd)/LATEST.md" "$WEBAPP_PATH/LATEST.md"
+echo "Yarn build completed."
+
+# start a Python HTTP server to serve webapp/index.html
+echo "Running Python HTTP server..."
+python3 -m http.server 8000 --directory "$WEBAPP_PATH"