remove jinjify from nikola-themes (via #1104)

Signed-off-by: Chris “Kwpolska” Warrick <kwpolska@gmail.com>
update for new navbar

Signed-off-by: Chris “Kwpolska” Warrick <kwpolska@gmail.com>
update for new navbar

Signed-off-by: Chris “Kwpolska” Warrick <kwpolska@gmail.com>
png → svg

Signed-off-by: Chris “Kwpolska” Warrick <kwpolska@gmail.com>