feat(patient): add appointment button

[oizuldan]

Fixes #1841.

Changes proposed in this pull request:

• Add "Add Appointment" button on the patient page, appointments tab.

[vercel]

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[oizuldan]

@jackcmeyer I have added tests and everything seems to work fine

[fox1t]

Need to check some tests that are not passing.

[oizuldan]

Hey @oizuldan, let me know if you need any help getting this pull request finished up!

Okay!

[oizuldan]

A stylistic change:

Can we make the New Appointment aligned with all of the other "Add" buttons in the diagnoses tab, allergies tab, etc.

Will do

[jackcmeyer]

@oizuldan code changes look good. just need to fix linter errors. let me know if you need any help!

[oizuldan]

@oizuldan code changes look good. just need to fix linter errors. let me know if you need any help!

Do I need to fix these errors? (I am a little confused since you already approved my PR)

[vercel]

Deployment failed with the following error:

request to https://api.zeit.co/v12/now/deployments?teamId=team_KiGwX2JSRgAI3krc36DK1uGg&skipAutoDetectionConfirmation=1 failed, reason: socket hang up