missing upload errors logging

[todo]

ngx-uploadx/src/uploadx/lib/uploader.ts

Lines 134 to 137 in bc7a900

	// TODO: e log
	if (this.errorHandler.kind(this.responseStatus) !== ErrorType.FatalError) {
	this.status = 'retry';
	await this.errorHandler.wait();

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This issue was generated by todo based on a TODO comment in bc7a900 when #241 was merged. cc @kukhariev.