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

frontend/node_modules/cross-spawn/index.js

@@ -1,39 +0,0 @@
-'use strict';
-
-const cp = require('child_process');
-const parse = require('./lib/parse');
-const enoent = require('./lib/enoent');
-
-function spawn(command, args, options) {
-    // Parse the arguments
-    const parsed = parse(command, args, options);
-
-    // Spawn the child process
-    const spawned = cp.spawn(parsed.command, parsed.args, parsed.options);
-
-    // Hook into child process "exit" event to emit an error if the command
-    // does not exists, see: https://github.com/IndigoUnited/node-cross-spawn/issues/16
-    enoent.hookChildProcess(spawned, parsed);
-
-    return spawned;
-}
-
-function spawnSync(command, args, options) {
-    // Parse the arguments
-    const parsed = parse(command, args, options);
-
-    // Spawn the child process
-    const result = cp.spawnSync(parsed.command, parsed.args, parsed.options);
-
-    // Analyze if the command does not exist, see: https://github.com/IndigoUnited/node-cross-spawn/issues/16
-    result.error = result.error || enoent.verifyENOENTSync(result.status, parsed);
-
-    return result;
-}
-
-module.exports = spawn;
-module.exports.spawn = spawn;
-module.exports.sync = spawnSync;
-
-module.exports._parse = parse;
-module.exports._enoent = enoent;