Use webp for thumbnails when available

src/views/renderutils.nim

@@ -3,6 +3,14 @@ import strutils, strformat
 import karax/[karaxdsl, vdom, vstyles]
 import ".."/[types, utils]
 
+const smallWebp* = "?name=small&format=webp"
+
+proc getSmallPic*(url: string): string =
+  result = url
+  if "?" notin url and not url.endsWith("placeholder.png"):
+    result &= smallWebp
+  result = getPicUrl(result)
+
 proc icon*(icon: string; text=""; title=""; class=""; href=""): VNode =
   var c = "icon-" & icon
   if class.len > 0: c = &"{c} {class}"