fix: address code review feedback - improve type safety and React best practices

Author: cheeseburgertony

src/Options.tsx

@@ -60,16 +60,10 @@ const Options: React.FC<OptionsProps> = (props) => {
       : (value: string | number) => `${value} ${locale.items_per_page}`;
 
   const handleChange = (e: React.ChangeEvent<HTMLInputElement>) => {
-    let value = e.target.value;
-
+    const value = e.target.value;
     // Filter non-numeric characters for QuickJumper input
     const numericValue = value.replace(/\D/g, '');
-    if (numericValue !== value) {
-      e.target.value = numericValue;
-      value = numericValue;
-    }
-
-    setGoInputText(value);
+    setGoInputText(numericValue);
   };
 
   const handleBlur = (e: React.FocusEvent<HTMLInputElement, Element>) => {

src/Pagination.tsx

@@ -148,7 +148,7 @@ const Pagination: React.FC<PaginationProps> = (props) => {
   function getValidValueForFiltered(
     originalValue: string,
     filteredValue: string,
-  ): number {
+  ): number | '' {
     // If the input was completely filtered out (non-numeric), return current value
     if (filteredValue === '' && originalValue !== '') {
       return internalInputVal;
@@ -187,19 +187,22 @@ const Pagination: React.FC<PaginationProps> = (props) => {
     }
 
     const value = getValidValueForFiltered(originalValue, numericValue);
-    if (value !== internalInputVal) {
-      setInternalInputVal(value);
+    // Handle empty string case
+    const numValue = typeof value === 'number' ? value : internalInputVal;
+
+    if (numValue !== internalInputVal) {
+      setInternalInputVal(numValue);
     }
 
     switch ((event as React.KeyboardEvent<HTMLInputElement>).keyCode) {
       case KeyCode.ENTER:
-        handleChange(value);
+        handleChange(numValue);
         break;
       case KeyCode.UP:
-        handleChange(value - 1);
+        handleChange(numValue - 1);
         break;
       case KeyCode.DOWN:
-        handleChange(value + 1);
+        handleChange(numValue + 1);
         break;
       default:
         break;