docs: update the section 'managing workbooks' with new info about the left sidebar (#457)

docs/src/web-application/managing-workbooks.md

@@ -0,0 +1,18 @@
+---
+layout: doc
+outline: deep
+lang: en-US
+---
+
+# Managing Workbooks
+
+All your created sheets can be accessed from the **Workbook Sidebar**. To display it, click the button in the top-left corner of the window. From there, you can:
+
+- View all existing workbooks, ordered by date (today, last 30 days, and older)
+- Create new blank workbooks
+- Download the existing workbook as .xlsx
+- Pin workbooks to the top of the list
+- Duplicate workbooks
+- Delete workbooks
+
+This helps you keep your workbooks organized and makes sharing simple and straightforward.

docs/src/web-application/sharing-files.md

@@ -25,13 +25,4 @@ IronCalc makes it easy to share your files with others. Follow these steps to sh
    When the URL is used to open the sheet, it displays the version of the sheet that was visible when the **"Share"** button was clicked. Please note that **any changes made to the original sheet after sharing will not be reflected in the shared version**.
 
 - **Changes in the Shared Version**:  
-  Any modifications made in the shared sheet (even if it’s an existing sheet) will **not** overwrite or affect the original sheet.
-
-## Managing Sheets
-
-All your created sheets can be accessed from the **"File"** section in the top-left corner of the window. From here, you can:
-
-- View all existing sheets.
-- Delete sheets as needed.
-
-This helps you keep your files organized and makes sharing simple and straightforward.
+  Any modifications made in the shared sheet (even if it’s an existing sheet) will **not** overwrite or affect the original sheet.