Create login form component

[LawrenceQiu]

Summary

What is the nature of this pull request?

• New feature
• Enhancement to an existing feature
• Bug fix
• Configuration update
• Dependency update

Description of change

Created login form component

Planner card link

https://teams.microsoft.com/l/entity/com.microsoft.teamspace.tab.planner/tt.c_19:[email protected]_p_TOGdCftBI0mZ937fEIW0jsgAHPsL_h_1710632381880?tenantId=d02378ec-1688-46d5-8540-1c28b5f470f6&webUrl=https%3A%2F%2Ftasks.teams.microsoft.com%2Fteamsui%2FpersonalApp%2Falltasklists&context=%7B%22subEntityId%22%3A%22%2Fv1%2Fplan%2FTOGdCftBI0mZ937fEIW0jsgAHPsL%2Ftask%2F_IhyIi_Q5ka8-m7vt3inSsgANzj0%22%2C%22channelId%22%3A%2219%3Ac1b94839a3db4c6e8bf052aeadb33d9b%40thread.tacv2%22%7D

Readiness

• [ X] The application runs successfully with my change.
• [ X] I have included code comments where appropriate.
• Where I have copied and pasted code from other sources, I have included a comment with a link to the original source.
• [ X] I have read and followed the principles and guidelines about submitting code.
• I have added unit tests for new components and/or functionality.
• [ X] All existing and new unit tests pass (including updating tests for any necessary breaking changes).