Use Omasnap for screenshots

default/hypr/apps/screenshot-selection.lua

@@ -1,2 +1,5 @@
--- Remove the 1px border around the slurp region selection used by screenshots.
+-- Remove the 1px border around the slurp region selection used by recordings, OCR, and QR capture.
 hl.layer_rule({ match = { namespace = "selection" }, no_anim = true, animation = "none" })
+
+-- Keep the Omasnap overlay immediate and out of screen shares.
+hl.layer_rule({ match = { namespace = "^omasnap$" }, no_anim = true, animation = "none", no_screen_share = true })