Add `redirect_to` to all login buttons to ensure user is redirected to previous page

[tomudding]

Description

Uses the functionality introduced in GH-1592 to redirect the user back to the page they came from after a successful login.

Related issues/external references

Fixes GH-1831.

Types of changes

• [ ] Bug fix (non-breaking change which fixes an issue)
• [X] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)
• [ ] Documentation improvement