Adding toggle system for old/new/all trains (#104)

* Adding toggle system for old/new/all trains

* Updating style of selectors

* Color match the currently selected line

Co-authored-by: Liza Pressman <lizarogot@gmail.com>

* Fixing linting errors

* Fixing based on code review

* Fixing up padding on new age toggle

* Updating header and 2.2.0 bump

Co-authored-by: Liza Pressman <lizarogot@gmail.com>

Author: devinmatte

.eslintrc.js

@@ -33,6 +33,7 @@ module.exports = {
         'react-hooks/rules-of-hooks': 'error',
         'react-hooks/exhaustive-deps': 'warn',
         'react/react-in-jsx-scope': 'off',
+        'no-console': 'warn',
         'import/no-default-export': 'warn',
         '@typescript-eslint/no-explicit-any': 'warn',
     },