build-release-tarball: Fix missing CSS-inlined email templates.
build-release-tarball: Fix missing CSS-inlined email templates.

These apparently we're being included.

Galexrt/zulip,showell/zulip,tommyip/zulip,rishig/zulip,dhcrzf/zulip,shubhamdhama/zulip,kou/zulip,dhcrzf/zulip,brainwane/zulip,brockwhittaker/zulip,Galexrt/zulip,rishig/zulip,dhcrzf/zulip,eeshangarg/zulip,brainwane/zulip,rht/zulip,zulip/zulip,andersk/zulip,jackrzhang/zulip,zulip/zulip,dhcrzf/zulip,timabbott/zulip,jackrzhang/zulip,kou/zulip,zulip/zulip,tommyip/zulip,Galexrt/zulip,eeshangarg/zulip,showell/zulip,Galexrt/zulip,rht/zulip,jackrzhang/zulip,eeshangarg/zulip,showell/zulip,zulip/zulip,brainwane/zulip,brockwhittaker/zulip,zulip/zulip,timabbott/zulip,rishig/zulip,mahim97/zulip,shubhamdhama/zulip,tommyip/zulip,synicalsyntax/zulip,kou/zulip,synicalsyntax/zulip,dhcrzf/zulip,andersk/zulip,eeshangarg/zulip,shubhamdhama/zulip,brainwane/zulip,brainwane/zulip,zulip/zulip,rishig/zulip,Galexrt/zulip,andersk/zulip,andersk/zulip,rht/zulip,showell/zulip,mahim97/zulip,tommyip/zulip,punchagan/zulip,punchagan/zulip,jackrzhang/zulip,shubhamdhama/zulip,hackerkid/zulip,kou/zulip,andersk/zulip,timabbott/zulip,timabbott/zulip,shubhamdhama/zulip,mahim97/zulip,dhcrzf/zulip,brockwhittaker/zulip,synicalsyntax/zulip,synicalsyntax/zulip,brainwane/zulip,jackrzhang/zulip,tommyip/zulip,eeshangarg/zulip,jackrzhang/zulip,synicalsyntax/zulip,rishig/zulip,punchagan/zulip,andersk/zulip,timabbott/zulip,kou/zulip,mahim97/zulip,punchagan/zulip,tommyip/zulip,rht/zulip,rishig/zulip,timabbott/zulip,tommyip/zulip,kou/zulip,rht/zulip,mahim97/zulip,rishig/zulip,punchagan/zulip,hackerkid/zulip,brockwhittaker/zulip,eeshangarg/zulip,kou/zulip,showell/zulip,dhcrzf/zulip,hackerkid/zulip,brainwane/zulip,synicalsyntax/zulip,shubhamdhama/zulip,jackrzhang/zulip,brockwhittaker/zulip,eeshangarg/zulip,hackerkid/zulip,synicalsyntax/zulip,brockwhittaker/zulip,hackerkid/zulip,timabbott/zulip,zulip/zulip,hackerkid/zulip,showell/zulip,rht/zulip,Galexrt/zulip,Galexrt/zulip,hackerkid/zulip,punchagan/zulip,showell/zulip,mahim97/zulip,rht/zulip,andersk/zulip,punchagan/zulip,shubhamdhama/zulip