links: use URL if label is made only of blanks thanks cage for unknowingly making me realize this edge case.

fix url handling in tp_figure now we pass the correct url from proxy.c

fix url handling

fix parsing of {! !} block after content the '{' and '!' characters were pushed back in the wrong order and so read as "!{" instead of "{!". add regress for this case, and for similar usage (02 change.)

css: give more space around links

template: add for loops

fix code listing in dark mode

change error message

error if PATH_INFO is not defined

fix quoting when overriding the default conf/user/socket

tp_head/foot can be called with clt->clt_pc NULL; handle it it happens when there's an error or we don't have a match for the proxy.

typo; continue instead of break if fcgi_abort_request fails the `fcgi' pointer is no longer valid, but we may still have to cleanup other inflight fcgi connections.

event_del only when we have a socket

fix crash if path is NULL

use -1 instead of WAIT_ANY for portability