config: add xremap for dual-function Caps Lock (Ctrl/Esc)

home/dot_config/systemd/user/xremap.service

@@ -0,0 +1,12 @@
+[Unit]
+Description=xremap key remapper
+After=graphical-session.target rebinded.service
+Wants=rebinded.service
+
+[Service]
+ExecStart=%h/.cargo/bin/xremap %h/.config/xremap/config.yml
+Restart=always
+RestartSec=3
+
+[Install]
+WantedBy=default.target

home/dot_config/xremap/config.yml

@@ -0,0 +1,14 @@
+# xremap configuration
+# https://github.com/xremap/xremap
+#
+# Dual-function Caps Lock:
+# - Tap: Escape (great for vim mode)
+# - Hold: Ctrl (reduces pinky strain)
+
+modmap:
+  - name: Caps Lock to Ctrl/Escape
+    remap:
+      CapsLock:
+        held: leftctrl
+        alone: esc
+        alone_timeout_millis: 200