feat(number-input): add hideSteppers prop

Allows consumers to hide the input stepper buttons.

docs/src/COMPONENT_API.json

@@ -6134,6 +6134,16 @@
           "constant": false,
           "reactive": false
         },
+        {
+          "name": "hideSteppers",
+          "kind": "let",
+          "description": "Set to `true` to hide the input stepper buttons",
+          "type": "boolean",
+          "value": "false",
+          "isFunction": false,
+          "constant": false,
+          "reactive": false
+        },
         {
           "name": "iconDescription",
           "kind": "let",

docs/src/pages/components/NumberInput.svx

@@ -23,6 +23,10 @@ components: ["NumberInput", "NumberInputSkeleton"]
 
 <NumberInput hideLabel label="Clusters" />
 
+### Hidden steppers
+
+<NumberInput hideSteppers label="Clusters" />
+
 ### Light variant
 
 <NumberInput light label="Clusters" />