feat: stage default configurations

Barebones default configurations (pending publication of my 'rice').

Has some basic layout tweaks from the default `hyprland` config
+ some integration of `swaync` into `waybar`.

config/display/hyprland/hypr/cfgs/input.conf

@@ -0,0 +1,31 @@
+#############
+### INPUT ###
+#############
+
+# https://wiki.hypr.land/Configuring/Variables/#input
+input {
+    kb_layout = gb
+    # kb_variant = qwerty
+    kb_variant =
+    kb_model =
+    kb_options =
+    kb_rules =
+
+    follow_mouse = 1
+
+    sensitivity = 0 # -1.0 - 1.0, 0 means no modification.
+
+    touchpad {
+        natural_scroll = false
+    }
+}
+
+# See https://wiki.hypr.land/Configuring/Gestures
+gesture = 3, horizontal, workspace
+
+# Example per-device config
+# See https://wiki.hypr.land/Configuring/Keywords/#per-device-input-configs for more
+device {
+    name = epic-mouse-v1
+    sensitivity = -0.5
+}