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

This reverts commit c92f4a5edd.

frontend/node_modules/eslint/messages/all-files-ignored.js

@@ -0,0 +1,16 @@
+"use strict";
+
+module.exports = function(it) {
+    const { pattern } = it;
+
+    return `
+You are linting "${pattern}", but all of the files matching the glob pattern "${pattern}" are ignored.
+
+If you don't want to lint these files, remove the pattern "${pattern}" from the list of arguments passed to ESLint.
+
+If you do want to lint these files, try the following solutions:
+
+* Check your .eslintignore file, or the eslintIgnore property in package.json, to ensure that the files are not configured to be ignored.
+* Explicitly list the files from this glob that you'd like to lint on the command-line, rather than providing a glob as an argument.
+`.trimStart();
+};