New: Add headers setting in webhook connection

(cherry picked from commit 78fb20282de73c0ea47375895a807235385d90e3)

frontend/src/Components/Form/KeyValueListInputItem.tsx

@@ -0,0 +1,89 @@
+import React, { useCallback } from 'react';
+import IconButton from 'Components/Link/IconButton';
+import { icons } from 'Helpers/Props';
+import TextInput from './TextInput';
+import styles from './KeyValueListInputItem.css';
+
+interface KeyValueListInputItemProps {
+  index: number;
+  keyValue: string;
+  value: string;
+  keyPlaceholder?: string;
+  valuePlaceholder?: string;
+  isNew: boolean;
+  onChange: (index: number, itemValue: { key: string; value: string }) => void;
+  onRemove: (index: number) => void;
+  onFocus: () => void;
+  onBlur: () => void;
+}
+
+function KeyValueListInputItem({
+  index,
+  keyValue,
+  value,
+  keyPlaceholder = 'Key',
+  valuePlaceholder = 'Value',
+  isNew,
+  onChange,
+  onRemove,
+  onFocus,
+  onBlur,
+}: KeyValueListInputItemProps): JSX.Element {
+  const handleKeyChange = useCallback(
+    ({ value: keyValue }: { value: string }) => {
+      onChange(index, { key: keyValue, value });
+    },
+    [index, value, onChange]
+  );
+
+  const handleValueChange = useCallback(
+    ({ value }: { value: string }) => {
+      onChange(index, { key: keyValue, value });
+    },
+    [index, keyValue, onChange]
+  );
+
+  const handleRemovePress = useCallback(() => {
+    onRemove(index);
+  }, [index, onRemove]);
+
+  return (
+    <div className={styles.itemContainer}>
+      <div className={styles.keyInputWrapper}>
+        <TextInput
+          className={styles.keyInput}
+          name="key"
+          value={keyValue}
+          placeholder={keyPlaceholder}
+          onChange={handleKeyChange}
+          onFocus={onFocus}
+          onBlur={onBlur}
+        />
+      </div>
+
+      <div className={styles.valueInputWrapper}>
+        <TextInput
+          className={styles.valueInput}
+          name="value"
+          value={value}
+          placeholder={valuePlaceholder}
+          onChange={handleValueChange}
+          onFocus={onFocus}
+          onBlur={onBlur}
+        />
+      </div>
+
+      <div className={styles.buttonWrapper}>
+        {isNew ? null : (
+          <IconButton
+            name={icons.REMOVE}
+            tabIndex={-1}
+            onPress={handleRemovePress}
+          />
+        )}
+      </div>
+    </div>
+  );
+}
+
+export default KeyValueListInputItem;