Added social media icons and corrections

[snehaM2210]

Description

I have changed color of icons almost similar to their official color code and have added some other social media icons of gmail and bitbucket. I have also changed the padding of instagram icon and have listed the accounts according to the icons in edit.html. I have also changed the width of body in popup.html so that all icons fit properly.
Hope you like it and merge it!
(As in last PR , I created to merge it into master by mistake, so this time doing pull req to merge it in develop branch)

Fixes #18 (issue)

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce. Please also list any relevant details for your test configuration

• Test A
• Test B

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings

[garimasingh128]

• content and changes looks fine but I would advice you to double check for minor errors if any.

Conflicting files
edit.html
popup.html

resolve these

[snehaM2210]

Yeah sure.. I'll check the conflicts and resolve them.

[snehaM2210]

I've resolved the conflicts and have also modified the extension in #68 . Hope you like it and merge it!

[garimasingh128]

Conflicting files
edit.html
popup.html

Resolve them and send me the link to your PR at garingh128@gmail.com after you do so.

[garimasingh128]

Please do this asap.