[Fix] : Social auths and Added Github OAuth

[Aryamanz29]

Description:

• Solved existing auth problem
• Added keys to .env
• Added Github OAuth to App
• Note: If you have the same e-mail registered with GitHub and Google it might give you an error because, Acc to django-alluth we can't create a user with the same email for 2 socials accounts, So you have to choose only one option to sign up to avoid this error.

Fixes #193

Type of change:

• [x] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [ ] This change requires a documentation update

Checklist:

• [x] My code follows the style guidelines of this project.
• [x] I have performed a self-review of my own code.
• [x] I have commented on my code, particularly in hard-to-understand areas.
• [x] I have made corresponding changes to the documentation.
• [x] My changes generate no new warnings.
• [ ] I have added tests that prove my fix is effective or that my feature works.
• [ ] New and existing unit tests pass locally with my changes.
• [ ] Any dependent changes have been merged and published in downstream modules.

Screenshots / Video:

[SaiSudhaV]

@Aryamanz29 Please do attach a working demo video with all the following: case1 : When a user is not registered case2 : When the user is logged in with google or github blocking the entry from the other social account.

[Aryamanz29]

@Aryamanz29 Please do attach a working demo video with all the following: case1 : When a user is not registered case2 : When the user is logged in with google or github blocking the entry from the other social account.

CASE - 1 When user not registered 👇

CASE - 2 When user first login with Github then after with Google with the same email registered on both socials, he/she might get this form/error, So it is preferred to use only a single auth service either google or GitHub if you have the same email registered with both social auth in my case ie. aryamanz29@gmail.com 👇

[SaiSudhaV]

CASE - 1 When user not registered 👇

CASE - 2 When user first login with Github then after with Google with the same email registered on both socials, he/she might get this form/error, So it is preferred to use only a single auth service either google or GitHub if you have the same email registered with both social auth in my case ie. aryamanz29@gmail.com 👇

In case2 the redirection of login to google accounts, was it default one or was it created in our project?

[Aryamanz29]

CASE - 1 When user not registered point_down CASE - 2 When user first login with Github then after with Google with the same email registered on both socials, he/she might get this form/error, So it is preferred to use only a single auth service either google or GitHub if you have the same email registered with both social auth in my case ie. aryamanz29@gmail.com point_down

In case2 the redirection of login to google accounts, was it default one or was it created in our project?

In case2 first gif , I show you that both GitHub and Google auth sevice won't work if user have same registered email , but in second gif of case2 or gif of case1 you see that he/she can use either GitHub or google but not both.