Move default props to default parameters - simple cases

React throws a deprecation warning for defaultProps.
This commit refactors default props to default values in easy-to-fix cases.

[MAILPOET-6108]

packages/js/eslint-config/eslint-es5.config.js

@@ -38,6 +38,7 @@ module.exports = [
       'no-underscore-dangle': 0, // Backbone uses underscores, we cannot remove them
       'import/no-default-export': 1, // no default exports
       'no-only-tests/no-only-tests': 2,
+      'react/require-default-props': 0, // deprecated in react 18.3.1
       'check-file/filename-naming-convention': [
         'error',
         { '**/*.*': 'KEBAB_CASE' },