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

This reverts commit c92f4a5edd.

frontend/node_modules/eslint/messages/plugin-invalid.js

@@ -0,0 +1,16 @@
+"use strict";
+
+module.exports = function(it) {
+    const { configName, importerName } = it;
+
+    return `
+"${configName}" is invalid syntax for a config specifier.
+
+* If your intention is to extend from a configuration exported from the plugin, add the configuration name after a slash: e.g. "${configName}/myConfig".
+* If this is the name of a shareable config instead of a plugin, remove the "plugin:" prefix: i.e. "${configName.slice("plugin:".length)}".
+
+"${configName}" was referenced from the config file in "${importerName}".
+
+If you still can't figure out the problem, please see https://eslint.org/docs/latest/use/troubleshooting.
+`.trimStart();
+};