Support Latvian address scheme (#9667)

To [check address format](https://www.pasts.lv/en/Category/Postal_Code_Look-up/) see official Latvian Post website.

data/address_formats.json

@@ -69,13 +69,6 @@
       ["postcode", "city"]
     ]
   },
-  {
-    "countryCodes": ["lv"],
-    "format": [
-      ["street", "housenumber"],
-      ["city", "postcode"]
-    ]
-  },
   {
     "countryCodes": ["br"],
     "format": [
@@ -202,6 +195,26 @@
       "postcode": 0.2
     }
   },
+  {
+    "countryCodes": ["lv"],
+    "format": [
+      ["street", "housenumber"],
+      ["housename", "subdistrict"],
+      ["district", "city", "postcode"]
+    ],
+    "dropdowns": [
+      "street", "city", "subdistrict", "district", "postcode"
+    ],
+    "widths": {
+      "street": 0.7,
+      "housenumber": 0.3,
+      "housename": 0.4,
+      "subdistrict": 0.6,
+      "district": 0.4,
+      "city": 0.4,
+      "postcode": 0.2
+    }
+  },
   {
     "countryCodes": ["in"],
     "format": [