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/Common/Upload/Upload.tsx

@@ -50,10 +50,33 @@ export const Upload: FunctionComponent<UploadProps> = ({
   const title = label + " to upload";
   return (
     <div>
-      <span className="renewUploadItemsHeader">{label}</span>
+      <span className="renewUploadItemsHeader" style={{ color: "var(--colorNeutralForeground1)" }}>
+        {label}
+      </span>
       {tooltip && <InfoTooltip>{tooltip}</InfoTooltip>}
       <Stack horizontal>
-        <TextField styles={{ fieldGroup: { width: 300 } }} readOnly value={selectedFilesTitle.toString()} />
+        <TextField
+          styles={{
+            fieldGroup: {
+              width: 300,
+              backgroundColor: "var(--colorNeutralBackground3)",
+              borderColor: "var(--colorNeutralStroke1)",
+            },
+            field: {
+              backgroundColor: "var(--colorNeutralBackground3)",
+              color: "var(--colorNeutralForeground1)",
+            },
+            subComponentStyles: {
+              label: {
+                root: {
+                  color: "var(--colorNeutralForeground1)",
+                },
+              },
+            },
+          }}
+          readOnly
+          value={selectedFilesTitle.toString()}
+        />
         <input
           type="file"
           id="importFileInput"