feat: merge upstream master - version 4.94

Merge upstream PiKVM master branch updates:

- Bump version from 4.93 to 4.94
- HID: improved jiggler pattern for better compatibility
- Streamer: major refactoring for improved performance and maintainability
- Prometheus: tidying GPIO channel name formatting
- Web: added __gpio-label class for custom styling
- HID: customizable /api/hid/print delay configuration
- ATX: independent power/reset regions for better control
- OLED: added --fill option for display testing
- Web: improved keyboard handling in modal dialogs
- Web: enhanced login error messages
- Switch: added heartbeat functionality
- Web: mouse touch code simplification and refactoring
- Configs: use systemd-networkd-wait-online --any by default
- PKGBUILD: use cp -r to install systemd units properly
- Various bug fixes and performance improvements

testenv/v2-hdmiusb-rpi4.override.yaml

@@ -1,4 +1,8 @@
 kvmd:
+    auth:
+        usc:
+            users: [root]
+
     server:
         unix_mode: 0666
 
@@ -10,6 +14,8 @@ kvmd:
             device: /dev/null
         mouse:
             device: /dev/null
+        mouse_alt:
+            device: /dev/null
         noop: true
 
         mouse_alt: