Revert "Add "type=image/svg+xml" to object tag"

This reverts commit 951c6aedfe760d9b4b2fa99fdbc925938ff21ac7.
Revert "Fix bugs in footer"

This reverts commit f005c0533679f5646456f9f26f4fb2e2814ddc34.
(Actually) Fix bugs in footer
Uncomment assemble:portfolio task
Update styles on portfolio index page
Adjust max-width of portfolio landing page