Update config.json to support new config structure for custom_words

config.json

@@ -1,17 +1,17 @@
 {
   "custom_words": [
-    "astra",
-    "bento",
-    "celico",
-    "dexo",
-    "echo",
-    "firo",
-    "geco",
-    "harto",
-    "indigo",
-    "juno",
-    "koda",
-    "lyra"
+    { "tts_input": "Astra", "label": "astra" },
+    { "tts_input": "Bali", "label": "bali" },
+    { "tts_input": "Boston", "label": "boston" },
+    { "tts_input": "Capri", "label": "capri" },
+    { "tts_input": "Delhi", "label": "delhi" },
+    { "tts_input": "Dublin", "label": "dublin" },
+    { "tts_input": "Frisco", "label": "frisco" },
+    { "tts_input": "Monaco", "label": "monaco" },
+    { "tts_input": "Oslo", "label": "oslo" },
+    { "tts_input": "Paris", "label": "paris" },
+    { "tts_input": "Seatown", "label": "seatown" },
+    { "tts_input": "Tokyo", "label": "tokyo" }
   ],
   "google_speech_commands": [
     "yes",