add niri setup

ghostty-niri/config

@@ -0,0 +1,21 @@
+theme = Catppuccin Mocha
+
+background-opacity = 0.95
+background-blur = true
+
+window-padding-x = 10
+window-padding-y = 10
+
+keybind = ctrl+shift+r=reload_config
+
+command = exec fish
+
+confirm-close-surface = false
+
+font-family = Maple Mono NF CN
+font-size = 12
+
+cursor-style = bar
+adjust-cursor-thickness = 3
+
+custom-shader = cursor-shaders/cursor-smear.glsl