fix #141515.

Author: rebornix

src/vs/base/browser/ui/findinput/findInput.ts

@@ -72,8 +72,8 @@ export class FindInput extends Widget {
 
 	protected controls: HTMLDivElement;
 	protected regex: RegexCheckbox;
-	private wholeWords: WholeWordsCheckbox;
-	private caseSensitive: CaseSensitiveCheckbox;
+	protected wholeWords: WholeWordsCheckbox;
+	protected caseSensitive: CaseSensitiveCheckbox;
 	public domNode: HTMLElement;
 	public inputBox: HistoryInputBox;
 

src/vs/workbench/contrib/notebook/browser/contrib/find/notebookFindReplaceWidget.ts

@@ -159,6 +159,12 @@ class NotebookFindInput extends FindInput {
 				this._filtersAction.checked = false;
 			}
 		}));
+
+		this.inputBox.paddingRight = this.caseSensitive.width() + this.wholeWords.width() + this.regex.width() + this.getFilterWidth();
+	}
+
+	private getFilterWidth() {
+		return 2 /*margin left*/ + 2 /*border*/ + 2 /*padding*/ + 16 /* icon width */;
 	}
 
 	private createFilters(container: HTMLElement): void {