cmd/tclipd: handle untitled pastes better

[Xe]

Previously when you submitted a paste without a filename, it would create an unclickable link. This no longer happens.

Fixes #29

[icio]

LGTM. You could also fix the links for already-created pastes by adding some fallback text for {{.Filename}} to the template:

tclip/cmd/tclipd/tmpl/listpaste.html

Line 5 in 2e7c605

<li><a class="font-semibold underline text-gray-900 hover:text-gray-500" href="/paste/{{.ID}}">{{.Filename}}</a> - {{.CreatedAt}} - {{.PasterDisplayName}}</li>

[Xe]

LGTM. You could also fix the links for already-created pastes by adding some fallback text for {{.Filename}} to the template:

tclip/cmd/tclipd/tmpl/listpaste.html

Line 5 in 2e7c605

<li><a class="font-semibold underline text-gray-900 hover:text-gray-500" href="/paste/{{.ID}}">{{.Filename}}</a> - {{.CreatedAt}} - {{.PasterDisplayName}}</li>

This is fixed at the layer above template rendering.