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

This reverts commit c92f4a5edd.

frontend/node_modules/eslint/messages/eslintrc-plugins.js

@@ -0,0 +1,28 @@
+"use strict";
+
+module.exports = function({ plugins }) {
+
+    const isArrayOfStrings = typeof plugins[0] === "string";
+
+    return `
+A config object has a "plugins" key defined as an array${isArrayOfStrings ? " of strings" : ""}. It looks something like this:
+
+    {
+        "plugins": ${JSON.stringify(plugins)}
+    }
+
+Flat config requires "plugins" to be an object, like this:
+
+    {
+        plugins: {
+            ${isArrayOfStrings && plugins[0] ? plugins[0] : "namespace"}: pluginObject
+        }
+    }
+
+Please see the following page for information on how to convert your config object into the correct format:
+https://eslint.org/docs/latest/use/configure/migration-guide#importing-plugins-and-custom-parsers
+
+If you're using a shareable config that you cannot rewrite in flat config format, then use the compatibility utility:
+https://eslint.org/docs/latest/use/configure/migration-guide#using-eslintrc-configs-in-flat-config
+`;
+};