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

This reverts commit c92f4a5edd.

frontend/node_modules/eslint/lib/rules/no-process-exit.js

@@ -0,0 +1,47 @@
+/**
+ * @fileoverview Disallow the use of process.exit()
+ * @author Nicholas C. Zakas
+ * @deprecated in ESLint v7.0.0
+ */
+"use strict";
+
+//------------------------------------------------------------------------------
+// Rule Definition
+//------------------------------------------------------------------------------
+
+/** @type {import('../shared/types').Rule} */
+module.exports = {
+    meta: {
+        deprecated: true,
+
+        replacedBy: [],
+
+        type: "suggestion",
+
+        docs: {
+            description: "Disallow the use of `process.exit()`",
+            recommended: false,
+            url: "https://eslint.org/docs/latest/rules/no-process-exit"
+        },
+
+        schema: [],
+
+        messages: {
+            noProcessExit: "Don't use process.exit(); throw an error instead."
+        }
+    },
+
+    create(context) {
+
+        //--------------------------------------------------------------------------
+        // Public
+        //--------------------------------------------------------------------------
+
+        return {
+            "CallExpression > MemberExpression.callee[object.name = 'process'][property.name = 'exit']"(node) {
+                context.report({ node: node.parent, messageId: "noProcessExit" });
+            }
+        };
+
+    }
+};