fix: spread out low person count

for 2 people tan is huge, so radius becomes ~0, hardcode for radius
~image size

and in css --r add part of image for 'offces from center'

routes/room_page_templates_preview.go

@@ -55,6 +55,10 @@ func (r *roomTableData)Total() int {
 	return len(r.Paricipants)
 }
 func (r *roomTableData)Tangens() float64 {
+	total := r.Total()
+	if total == 2 {
+		return 1
+	}
 	return math.Tan(math.Pi / float64(r.Total())) // Math.tan(Math.PI/m);
 }