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

frontend/node_modules/ajv/lib/dot/not.jst

@@ -1,43 +0,0 @@
-{{# def.definitions }}
-{{# def.errors }}
-{{# def.setupKeyword }}
-{{# def.setupNextLevel }}
-
-{{? {{# def.nonEmptySchema:$schema }} }}
-  {{
-    $it.schema = $schema;
-    $it.schemaPath = $schemaPath;
-    $it.errSchemaPath = $errSchemaPath;
-  }}
-
-  var {{=$errs}} = errors;
-
-  {{# def.setCompositeRule }}
-
-  {{
-    $it.createErrors = false;
-    var $allErrorsOption;
-    if ($it.opts.allErrors) {
-      $allErrorsOption = $it.opts.allErrors;
-      $it.opts.allErrors = false;
-    }
-  }}
-  {{= it.validate($it) }}
-  {{
-    $it.createErrors = true;
-    if ($allErrorsOption) $it.opts.allErrors = $allErrorsOption;
-  }}
-
-  {{# def.resetCompositeRule }}
-
-  if ({{=$nextValid}}) {
-    {{# def.error:'not' }}
-  } else {
-    {{# def.resetErrors }}
-  {{? it.opts.allErrors }} } {{?}}
-{{??}}
-  {{# def.addError:'not' }}
-  {{? $breakOnError}}
-    if (false) {
-  {{?}}
-{{?}}