[form] Allow to augment InputAttributes type

Author: x0k

.changeset/pretty-ears-begin.md

@@ -0,0 +1,5 @@
+---
+"@sjsf/form": minor
+---
+
+Allow to augment `InputAttributes` type

apps/docs/src/content/docs/api-reference/ui-schema.mdx

@@ -31,10 +31,13 @@ Root node of UI schema can have an additional fields:
 ## UI options
 
 ```typescript
-type InputAttributes =
-  | HTMLInputAttributes
-  | HTMLTextareaAttributes
-  | HTMLSelectAttributes
+interface Inputs {
+  input: HTMLInputAttributes;
+  textarea: HTMLTextareaAttributes;
+  select: HTMLSelectAttributes;
+}
+
+type InputAttributes = Inputs[keyof Inputs];
 
 interface UiOptions {
   /**

packages/form/src/form/ui-schema.ts

@@ -47,11 +47,13 @@ interface UiSchemaContent {
   additionalItems?: UiSchema;
 }
 
-// TODO: Omit non serializable properties
-export type InputAttributes =
-  | HTMLInputAttributes
-  | HTMLTextareaAttributes
-  | HTMLSelectAttributes;
+export interface Inputs {
+  input: HTMLInputAttributes;
+  textarea: HTMLTextareaAttributes;
+  select: HTMLSelectAttributes;
+}
+
+export type InputAttributes = Inputs[keyof Inputs];
 
 export interface UiOptions {
   /**