fix: local keyword invalid outside function, use plain variable

install_nvchad.sh

@@ -46,7 +46,7 @@ if [ -d "$NVIM_CONFIG/.git" ]; then
     EXISTING_REMOTE=$(git -C "$NVIM_CONFIG" remote get-url "$REMOTE_NAME" 2>/dev/null || echo "")
     if [ "$EXISTING_REMOTE" = "$REPO" ]; then
         echo "NvChad config already installed — pulling latest..."
-        local stashed=false
+        stashed=false
         if ! git -C "$NVIM_CONFIG" diff --quiet || ! git -C "$NVIM_CONFIG" diff --cached --quiet; then
             git -C "$NVIM_CONFIG" stash
             stashed=true