fix up truncation

src/hyprland.nim

@@ -1,6 +1,6 @@
 import std/[
   os, osproc, strformat, strutils,
-  streams, tables, net, sugar, times
+  streams, tables, net, sugar, times, unicode
 ]
 import ./[lib, swww]
 import yaml, jsony
@@ -102,9 +102,11 @@ proc writeEwwClasses*() =
   for id in openWorkspaces(monitors):
     workspaces[id - 1].class.add " ws-button-open"
 
+  # truncate icons at 3 windows
   for ws in workspaces.mitems:
-    if ws.icon.len > 10:
-      ws.icon = ws.icon[0..7] & "..."
+    if ws.icon.runeLen > 3:
+      ws.icon =
+        ($(ws.icon.toRunes()[0..2]) & "+")
 
   var ewwClasses =
     collect: