Fix #85629. Resize find widget properly when resizing happens.

src/vs/editor/contrib/find/findWidget.ts

@@ -706,10 +706,12 @@ export class FindWidget extends Widget implements IOverlayWidget, IHorizontalSas
 
 		if (this._resized) {
 			this._findInput.inputBox.layout();
-			let findInputWidth = this._findInput.inputBox.width;
+			let findInputWidth = this._findInput.inputBox.element.clientWidth;
 			if (findInputWidth > 0) {
 				this._replaceInput.width = findInputWidth;
 			}
+		} else if (this._isReplaceVisible) {
+			this._replaceInput.width = dom.getTotalWidth(this._findInput.domNode);
 		}
 	}
 
@@ -1159,13 +1161,11 @@ export class FindWidget extends Widget implements IOverlayWidget, IHorizontalSas
 				return;
 			}
 
-			const inputBoxWidth = width - FIND_ALL_CONTROLS_WIDTH;
 			const maxWidth = parseFloat(dom.getComputedStyle(this._domNode).maxWidth!) || 0;
 			if (width > maxWidth) {
 				return;
 			}
 			this._domNode.style.width = `${width}px`;
-			this._findInput.inputBox.width = inputBoxWidth;
 			if (this._isReplaceVisible) {
 				this._replaceInput.width = dom.getTotalWidth(this._findInput.domNode);
 			}
@@ -1197,10 +1197,8 @@ export class FindWidget extends Widget implements IOverlayWidget, IHorizontalSas
 				 */
 			}
 
-			const inputBoxWidth = width - FIND_ALL_CONTROLS_WIDTH;
 
 			this._domNode.style.width = `${width}px`;
-			this._findInput.inputBox.width = inputBoxWidth;
 			if (this._isReplaceVisible) {
 				this._replaceInput.width = dom.getTotalWidth(this._findInput.domNode);
 			}