feat: each provider can have its own timeout

providers.azure.timeout, providers.databricks.timeout and
providers.repos.timeout override providers.timeout for that provider's
requests; --timeout still sets them all. lazysecrets share, which reads
a key and repo files, waits the longest of them.

internal/ui/app/links.go

@@ -158,7 +158,7 @@ func (m *Model) copyFromRef(r ref.Ref) tea.Cmd {
 		m.flash = flash{text: "copy: no account or profile for " + describeRef(r), isErr: true}
 		return nil
 	}
-	ctx, req := m.begin(slotCopy)
+	ctx, req := m.begin(slotCopy, r.Kind)
 	m.flash = flash{text: "copying " + r.Name + "…"}
 	return func() tea.Msg {
 		var errs []error