Migrate build target markers to keyboard.json - HI (#23540)

keyboards/handwired/prkl30/feather/keyboard.json

@@ -0,0 +1,45 @@
+{
+    "features": {
+        "bluetooth": true,
+        "bootmagic": true,
+        "command": true,
+        "console": true,
+        "encoder": true,
+        "extrakey": false,
+        "mousekey": false,
+        "nkro": true
+    },
+    "rgblight": {
+        "saturation_steps": 8,
+        "brightness_steps": 8,
+        "led_count": 13,
+        "animations": {
+            "breathing": true,
+            "rainbow_mood": true,
+            "rainbow_swirl": true,
+            "snake": true,
+            "knight": true,
+            "christmas": true,
+            "static_gradient": true,
+            "rgb_test": true,
+            "alternating": true,
+            "twinkle": true
+        }
+    },
+    "ws2812": {
+        "pin": "D1"
+    },
+    "bluetooth": {
+        "driver": "bluefruit_le"
+    },
+    "matrix_pins": {
+        "cols": ["D3", "D1", "B7", "D6", "C7", "B6", "B5", "D7", "C6", "D0"],
+        "rows": ["F4", "F1", "F0", "D2"]
+    },
+    "diode_direction": "COL2ROW",
+    "encoder": {
+        "rotary": [
+            {"pin_a": "F7", "pin_b": "F6"}
+        ]
+    }
+}