Multiple fixes

[AlanSoto31]

Description

• Update the Twitter logo.
• Add more margin to the end of the session index based on the viewport hight.

How has this been tested?

Please mark the tests that you ran to verify your changes. If difficult to test, consider providing instructions so reviewers can test.

• Manual testing
• System tests
• Unit tests
• None

Checklist

• CI pipeline is passing
• My code follows the conventions of this project
• I have performed a self-review of my code
• I have commented on my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation (if applicable)
• I have added seed data to the database (if applicable)

Release tasks

Add any tasks that need to be done before/after the release of this feature.

Screenshots/Loom

[LuigiR0jas]

Do not merge yet.