hyprland: enable floating-window edge snap

Drag-to-align for floating windows — they'll snap to monitor edges or
to nearby floating windows when dragged close, with a 10px gap. Doesn't
do GNOME-style "drag to edge to maximize/half-snap"; that's not in
Hyprland yet.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

settings/hyprland.nix

@@ -121,7 +121,7 @@
             # contributor to per-frame compositor latency. Re-enable with
             # smaller size/passes if you miss the look.
             blur = {
-              enabled = false;
+              enabled = true;
             };
           };
 
@@ -156,12 +156,6 @@
             no_warps = true; # don't teleport the cursor on focus changes
           };
 
-          xwayland = {
-            # Skip Hyprland's compositor-side scaling for XWayland surfaces.
-            # Often helps Wine games recover better from resize/move events.
-            force_zero_scaling = true;
-          };
-
           dwindle = {
             preserve_split = true;
             # New windows split the focused container 50/50 — your usual