Warning: componentWillMount has been renamed, and is not recommended for use

[AWIXOR-zz]

☑️ I have searched the issues of this repository and believe that this is not a duplicate.

Issues ❌

1. Invalid prop tag supplied to NavLink
2. Legacy context API has been detected within a strict-mode tree.
3. Eliminate use of deprecated legacy React component lifecycles such as componentWillMount.

Exemples 🌈

"react": "^16.13.1",
"shards-react": "^1.0.3"

1. First Error

Warning: Failed prop type: Invalid prop tag supplied to DropdownItem.

2. Second Error

Warning: Legacy context API has been detected within a strict-mode tree.
The old API will be supported in all 16.x releases, but applications using it should migrate to the new version.
Please update the following components: Transition$$1

3. Third Error

Warning: componentWillMount has been renamed, and is not recommended for use. See >https://fb.me/react-unsafe-component-lifecycles for details.

• Move code with side effects to componentDidMount, and set initial state in the constructor.
• Rename componentWillMount to UNSAFE_componentWillMount to suppress this warning in >non-strict mode. In React 17.x, only the UNSAFE_ name will work. To rename all deprecated lifecycles to their new names, you can run npx react-codemod rename-unsafe-lifecycles in your project source folder.

Please update the following components: MainSidebar, SidebarNavItems