Feat/GitHub auth (#6)

* ✨ (sign in) create sign in to github button

* ✨ (github login) login via github button

* 💄 (homepage)

* ➕ (date fns)

* ✨ (github login) refresh token when token expired

src/modules/user/interfaces/GithubToken.ts

@@ -0,0 +1,8 @@
+export interface GithubToken {
+  access_token: string
+  expires_in: number
+  refresh_token: string
+  refresh_token_expires_in: number
+  scope: string
+  token_type: 'bearer'
+}

src/modules/user/interfaces/GithubTokenError.ts

@@ -0,0 +1,5 @@
+export interface GithubTokenError {
+  error: string
+  error_description: string
+  error_uri: string
+}