[Query Copilot] Pin panel footer to the bottom, remove gap between panel and console (#1511)

* Move footer when save button is enabled to the bottom, remove gap between notification console and right panel

* Change the way panel height is calculated

* Remove unnecessary operator

* Change condition

* Fix snapshot

* Update panel height after animation ends and use different css for showing save button to the bottom of the page

* Fix ts compile

src/Explorer/Panes/PanelFooterComponent.tsx

@@ -1,16 +1,18 @@
 import { PrimaryButton } from "@fluentui/react";
-import React from "react";
+import React, { CSSProperties } from "react";
 
 export interface PanelFooterProps {
   buttonLabel: string;
   isButtonDisabled?: boolean;
+  style?: CSSProperties;
 }
 
 export const PanelFooterComponent: React.FunctionComponent<PanelFooterProps> = ({
   buttonLabel,
   isButtonDisabled,
+  style,
 }: PanelFooterProps): JSX.Element => (
-  <div className="panelFooter">
+  <div className="panelFooter" style={style}>
     <PrimaryButton
       type="submit"
       id="sidePanelOkButton"