Rev. 0.3: Add 10µF capacitor C304 to CAN transceiver

- Added 10µF capacitor C304 for improved CAN communication stability
- Enhanced signal integrity with additional filtering at CAN transceiver
- Updated changelogs and documentation for Rev. 0.3

EWS.kicad_pro

@@ -804,6 +804,6 @@
     ]
   ],
   "text_variables": {
-    "PROJEKT_REV": "0.2"
+    "PROJEKT_REV": "0.3"
   }
 }