Dark theme for Explorer (#2185)

* First dark theme commits for command bar

* Updated theme on sidebar

* Updated tabs, sidebar, splash screen

* settings theme changes

* Dark theme applied to Monaco editor

* Dark theme to stored procedures

* Fixed sidebar scroll

* Updated scroll issue in sidebar

* Command bar items fixed

* Fixed lint errors

* fixed lint errors

* settings side panel fixed

* Second last iteration for css

* Fixed all the issues of css

* Updated the theme icon for now on DE to change the theme from portal/DE itself

* Formatting issue resolved

* Remove CloudShellTerminalComponent changes - revert to master version

* Fixed test issue

* Fixed formatting issue

* Fix tests: update snapshots and revert xterm imports for compatibility

* Fix xterm imports in CloudShellTerminalComponent to use @xterm packages

* Fix Cloud Shell component imports for compatibility

* Update test snapshots

* Fix xterm package consistency across all CloudShell components

* Fix TypeScript compilation errors in CloudShell components and query Documents

- Standardized xterm package imports across CloudShell components to use legacy 'xterm' package
- Fixed Terminal type compatibility issues in CommonUtils.tsx
- Added type casting for enableQueryControl property in queryDocuments.ts to handle Azure Cosmos SDK interface limitations
- Applied code formatting to ensure consistency

* Update failing snapshot tests

- Updated TreeNodeComponent snapshot tests for loading states
- Updated ThroughputInputAutoPilotV3Component snapshots for number formatting changes (10,00,000 -> 1,000,000)
- All snapshot tests now pass

* Fixed test issue

* Fixed test issue

* Updated the buttons for theme

* Updated the Theme changes based on portal theme changes

* Updated review comments

* Updated the duplicate code and fixed the fabric react error

* Few places styling added and resolving few comments

* Fixed errors

* Fixed comments

* Fixed comments

* Fixed comments

* Fixed full text policy issue for mongoru accounts

* Resolved comments for class Name and few others

* Added css for homepage in ru accounts

* Final commit with all the feedback issues resolved

* Lint error resolved

* Updated the review comments and few Ui issues

* Resolved review comments and changed header bg and active state color

* Moved svg code to different file and imported

* css fixed for the hpome page boxed for ru account

* Lint errors

* Fixed boxes issue in ru accounts

* Handled the initial theme from the portal

* Updated snap

* Update snapshots for TreeNodeComponent and CreateCopyJobScreensProvider tests

* Fix duplicate DataExplorerRoot test id causing Playwright strict mode violation

* Fix locale-dependent number formatting in ThroughputInputAutoPilotV3Component

---------

Co-authored-by: Sakshi Gupta <sakshig+microsoft@microsoft.com>
Co-authored-by: Sakshi Gupta <sakshig@microsoft.com>

src/Explorer/Tabs/QueryTab/QueryTabComponent.tsx

@@ -24,6 +24,7 @@ import { Allotment } from "allotment";
 import { useClientWriteEnabled } from "hooks/useClientWriteEnabled";
 import { QueryCopilotState, useQueryCopilot } from "hooks/useQueryCopilot";
 import { TabsState, useTabs } from "hooks/useTabs";
+import { useMonacoTheme } from "hooks/useTheme";
 import React, { Fragment, createRef } from "react";
 import "react-splitter-layout/lib/index.css";
 import { format } from "react-string-format";
@@ -126,6 +127,7 @@ interface IQueryTabStates {
 
 export const QueryTabCopilotComponent = (props: IQueryTabComponentProps): any => {
   const styles = useQueryTabStyles();
+  const monacoTheme = useMonacoTheme();
   const copilotStore = useCopilotStore();
 
   const isSampleCopilotActive = useSelectedNode.getState().isQueryCopilotCollectionSelected();
@@ -137,16 +139,18 @@ export const QueryTabCopilotComponent = (props: IQueryTabComponentProps): any =>
     isSampleCopilotActive: isSampleCopilotActive,
     copilotStore: copilotStore,
   };
-  return <QueryTabComponentImpl styles={styles} {...queryTabProps} />;
+  return <QueryTabComponentImpl styles={styles} monacoTheme={monacoTheme} {...queryTabProps} />;
 };
 
 export const QueryTabComponent = (props: IQueryTabComponentProps): any => {
   const styles = useQueryTabStyles();
-  return <QueryTabComponentImpl styles={styles} {...{ ...props }} />;
+  const monacoTheme = useMonacoTheme();
+  return <QueryTabComponentImpl styles={styles} monacoTheme={monacoTheme} {...{ ...props }} />;
 };
 
 type QueryTabComponentImplProps = IQueryTabComponentProps & {
   styles: QueryTabStyles;
+  monacoTheme: string;
 };
 
 // Inner (legacy) class component. We only use this component via one of the two functional components above (since we need to use the `useQueryTabStyles` hook).
@@ -761,6 +765,7 @@ class QueryTabComponentImpl extends React.Component<QueryTabComponentImplProps,
                 wordWrap={"on"}
                 ariaLabel={"Editing Query"}
                 lineNumbers={"on"}
+                theme={this.props.monacoTheme}
                 onContentChanged={(newContent: string) => this.onChangeContent(newContent)}
                 onContentSelected={(selectedContent: string, selection: monaco.Selection) =>
                   this.onSelectedContent(selectedContent, selection)