Migrate features from rules.mk to DD (#23247)

keyboards/cosmo65/keyboard.json

@@ -25,6 +25,15 @@
     "ws2812": {
         "pin": "F7"
     },
+    "features": {
+        "bootmagic": true,
+        "command": true,
+        "console": false,
+        "extrakey": true,
+        "mousekey": true,
+        "nkro": true,
+        "rgblight": true
+    },
     "matrix_pins": {
         "cols": ["E6", "D4", "D6", "D7", "B4", "B5", "B6", "C6", "C7", "D1", "D2", "D3", "F1", "F6"],
         "rows": ["D5", "D0", "F0", "F5", "F4"]

keyboards/cosmo65/rules.mk

@@ -1,12 +0,0 @@
-# Build Options
-#   change yes to no to disable
-#
-BOOTMAGIC_ENABLE = yes      # Enable Bootmagic Lite
-MOUSEKEY_ENABLE = yes       # Mouse keys
-EXTRAKEY_ENABLE = yes       # Audio control and System control
-CONSOLE_ENABLE = no         # Console for debug
-COMMAND_ENABLE = yes        # Commands for debug and configuration
-NKRO_ENABLE = yes           # Enable N-Key Rollover
-BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality
-RGBLIGHT_ENABLE = yes       # Enable keyboard RGB underglow
-AUDIO_ENABLE = no           # Audio output