Revert "Add yet-another-react-lightbox package and update .gitignore to exclude node_modules"

This reverts commit c92f4a5edd.

frontend/node_modules/yaml/browser/dist/log.js

@@ -0,0 +1,11 @@
+function debug(logLevel, ...messages) {
+    if (logLevel === 'debug')
+        console.log(...messages);
+}
+function warn(logLevel, warning) {
+    if (logLevel === 'debug' || logLevel === 'warn') {
+        console.warn(warning);
+    }
+}
+
+export { debug, warn };