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

This reverts commit c92f4a5edd.

frontend/node_modules/react-dropzone/rollup.config.js

@@ -0,0 +1,33 @@
+const { nodeResolve } = require("@rollup/plugin-node-resolve");
+const commonjs = require("@rollup/plugin-commonjs");
+const { babel } = require("@rollup/plugin-babel");
+const { terser } = require("rollup-plugin-terser");
+
+const umdGlobals = {
+  react: "React",
+  "prop-types": "PropTypes",
+};
+
+module.exports = [
+  {
+    input: "./src/index.js",
+    output: {
+      file: "dist/index.js",
+      format: "umd",
+      name: "reactDropzone",
+      globals: umdGlobals,
+      sourcemap: "inline",
+      exports: "named",
+    },
+    external: Object.keys(umdGlobals),
+    plugins: [
+      nodeResolve(),
+      commonjs({ include: "**/node_modules/**" }),
+      babel({
+        exclude: "**/node_modules/**",
+        babelHelpers: "bundled",
+      }),
+      terser(),
+    ],
+  },
+];