italian: Fix colon

data/keyboards/it.yaml

@@ -22,7 +22,7 @@ views:
     numbers:
         - "1 2 3 4 5 6 7 8 9 0"
         - "@ # € % & - _ + ( )"
-        - "show_symbols   , \" ' colon ; ! ?  BackSpace"
+        - "show_symbols   , \" ' : ; ! ?  BackSpace"
         - "show_letters show_eschars preferences         space        ? . Return"
     symbols:
         - "~ ` | · √ π τ ÷ × ¶"
@@ -84,7 +84,4 @@ buttons:
         outline: "altline"
         icon: "key-enter"
         keysym: "Return"
-    colon:
-        label: ":"
-    "\"":
-        keysym: "quotedbl"
+