Allow DomainPropType to have only one defined axis

types/victory/index.d.ts

@@ -358,10 +358,7 @@ declare module "victory" {
     /**
      * Data domain type
      */
-    type DomainPropType = [number, number] | {
-        x: [number, number];
-        y: [number, number];
-    };
+    type DomainPropType = [number, number] | { x?: [number, number]; y: [number, number]; } | { x: [number, number]; y?: [number, number]; };
     /**
      * Domain padding
      */

types/victory/victory-tests.tsx

@@ -187,7 +187,7 @@ test = (
         dependentAxis
         padding={{left: 50, top: 20, bottom: 20}}
         scale="log"
-        domain={[1, 5]}
+        domain={{ x: [1, 5]}}
     />
 );