interface-board: fix issues noticed at soldering (adjust diode, buzzer footprints)

pi-interface-board_v1.0/fp-info-cache

@@ -1,4 +1,4 @@
-24204512936110938
+24204514148206423
 Audio_Module
 Reverb_BTDR-1H
 Digital Reverberation Unit, http://www.belton.co.kr/inc/downfile.php?seq=17&file=pdf (footprint from http://www.uk-electronic.de/PDF/BTDR-1.pdf)

pi-interface-board_v1.0/pi-interface-board_v1.0.kicad_prl

@@ -1,6 +1,6 @@
 {
   "board": {
-    "active_layer": 49,
+    "active_layer": 0,
     "active_layer_preset": "",
     "auto_track_width": false,
     "hidden_netclasses": [],
@@ -12,7 +12,7 @@
       "pads": 1.0,
       "tracks": 1.0,
       "vias": 1.0,
-      "zones": 0.1599999964237213
+      "zones": 0.7099999785423279
     },
     "selection_filter": {
       "dimensions": false,
@@ -22,8 +22,8 @@
       "lockedItems": false,
       "otherItems": false,
       "pads": false,
-      "text": true,
+      "text": false,
-      "tracks": false,
+      "tracks": true,
       "vias": false,
       "zones": false
     },
@@ -56,14 +56,13 @@
       29,
       30,
       32,
-      33,
       34,
       35,
       36,
       39,
       40
     ],
-    "visible_layers": "fffffff_fffffff9",
+    "visible_layers": "fff7fff_ffffffff",
     "zone_display_mode": 0
   },
   "git": {

pi-interface-board_v1.0/pi-interface-board_v1.0.kicad_pro

@@ -37,9 +37,9 @@
         "other_text_thickness": 0.15,
         "other_text_upright": false,
         "pads": {
-          "drill": 3.2,
+          "drill": 1.8,
-          "height": 3.2,
+          "height": 4.0,
-          "width": 3.2
+          "width": 4.0
         },
         "silk_line_width": 0.1,
         "silk_text_italic": false,