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/Controls/CollapsiblePanel/CollapsibleSectionComponent.tsx

@@ -58,7 +58,7 @@ export class CollapsibleSectionComponent extends React.Component<CollapsibleSect
           aria-expanded={this.state.isExpanded}
         >
           <Icon iconName={this.state.isExpanded ? "ChevronDown" : "ChevronRight"} />
-          <Label>{this.props.title}</Label>
+          <Label styles={{ root: { color: "var(--colorNeutralForeground1)" } }}>{this.props.title}</Label>
           {this.props.tooltipContent && (
             <TooltipHost
               directionalHint={DirectionalHint.bottomLeftEdge}
@@ -79,6 +79,14 @@ export class CollapsibleSectionComponent extends React.Component<CollapsibleSect
                 id={`delete-${this.props.title.split(" ").join("-")}`}
                 iconProps={{ iconName: "Delete" }}
                 style={{ height: 27, marginRight: "20px" }}
+                styles={{
+                  rootHovered: {
+                    backgroundColor: "transparent",
+                  },
+                  rootPressed: {
+                    backgroundColor: "transparent",
+                  },
+                }}
                 onClick={(event) => {
                   event.stopPropagation();
                   this.props.onDelete();

src/Explorer/Controls/CollapsiblePanel/__snapshots__/CollapsibleSectionComponent.test.tsx.snap

@@ -20,7 +20,15 @@ exports[`CollapsibleSectionComponent renders 1`] = `
     <Icon
       iconName="ChevronDown"
     />
-    <StyledLabelBase>
+    <StyledLabelBase
+      styles={
+        {
+          "root": {
+            "color": "var(--colorNeutralForeground1)",
+          },
+        }
+      }
+    >
       Sample title
     </StyledLabelBase>
   </Stack>