chore: custom error

web/components/imagetile.templ

@@ -1,9 +1,13 @@
 package components
 
+import "strings"
+import "fmt"
+
 templ ImageTile(src string) {
 	<div class="grid grid-cols-1 grid-rows-1">
 		<img
 			src={ src }
+			srcset={ makeSrcset(src) }
 			fetchpriority="high"
 			class="row-start-1 col-start-1 pointer-events-none w-full h-96 object-cover"
 		/>
@@ -12,3 +16,16 @@ templ ImageTile(src string) {
 		</div>
 	</div>
 }
+
+func makeSrcset(src string) string {
+	sb := strings.Builder{}
+
+	for i := range 19 {
+		sb.WriteString(fmt.Sprintf("%s?w=%d %dw, ", src, 100*(i+1), 50*(i+1)))
+	}
+
+	i := 20
+	sb.WriteString(fmt.Sprintf("%s?w=%d %dw", src, 100*(i+1), 50*(i+1)))
+
+	return sb.String()
+}