Apply suggestions from code review

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: mfranzke

packages/components/src/components/custom-select/model.ts

@@ -286,14 +286,14 @@ export type DBCustomSelectDefaultState = {
 	handleSelectAll: (event: any) => void;
 	handleClearAll: (event: any) => void;
 	handleDropdownToggle: (event: any) => void;
-	handleDocumentClose: (event: any) => void;
+	handleDocumentClose: (event: GeneralEvent<HTMLElement>) => void;
 	handleOpenByKeyboardFocus: () => void;
 	handleFocusFirstDropdownCheckbox: (activeElement?: Element) => void;
 	handleKeyboardPress: (
 		event: GeneralKeyboardEvent<HTMLDetailsElement>
 	) => void;
-	handleArrowDownUp: (event: any) => void;
-	handleSearch: (event: any) => void;
+	handleArrowDownUp: (event: GeneralKeyboardEvent<HTMLElement>) => void;
+	handleSearch: (valueOrEvent?: InputEvent<HTMLInputElement> | string | void) => void;
 	handleOptionSelected: (_values: string[]) => void;
 	getSelectAllLabel: () => string;
 	selectAllChecked: boolean;