Docs: update the issue template

[officeneerajsaini]

Describe the bug
We should update the issue template. We can add more new things like emoji, tags for issues, and titles for every issue, like Docs:, Feat:, Bug:. This way, we can understand the purpose of the issue raised by just seeing the title.

Expected behavior
We can see all issues with a good title so we can easily understand the purpose for which the issue was created.

Screenshots

I'd like to work on this issue under GSSOC. Could you please add the necessary label and tag to the issue and assign it to me?

[ashitaprasad]

Out of scope. Read the contributing guide.