Use consistent bash5 style for conditionals and quoting

bin/omarchy-install-dev-env

@@ -11,7 +11,7 @@ install_php() {
   omarchy-pkg-add php composer php-sqlite xdebug
 
   # Install Path for Composer
-  if [[ ":$PATH:" != *":$HOME/.config/composer/vendor/bin:"* ]]; then
+  if [[ :$PATH: != *:$HOME/.config/composer/vendor/bin:* ]]; then
     echo 'export PATH="$HOME/.config/composer/vendor/bin:$PATH"' >>"$HOME/.bashrc"
     source "$HOME/.bashrc"
     echo "Added Composer global bin directory to PATH."