Task(1030866): Getting started updated for filemanager blazor docs.

[vijayravi1610]

Task link: https://dev.azure.com/EssentialStudio/Ej2-Web/_workitems/edit/1030866) - updated filemanager blazor getting started with prompt

[SyncfusionBuild]

Build Status: INQUEUE 🕒
Build Location: ES-1030866-getting-started

[SyncfusionBuild]

Build Status: INPROGRESS 🔃
Build Location: ES-1030866-getting-started

[SyncfusionBuild]

CI Status: FAILURE ❌
Source Compilation: SUCCESS ✅
Failure Reason: CI Failure with violation
Build Location: ES-1030866-getting-started
Technical Error(s): 0
Spelling Error(s): 0
Image Alt Text Error(s): 0
Image Size Error(s): 0
Image Name Error(s): 0
Front matter Error(s): 1
File Path Error(s): 0
CodeSnippet File Path Missing Error(s): 0
Toc Anchor Tags Validation Error(s): 0
MD Tag Validation Error(s): 0

[SyncfusionBuild]

Build Status: INPROGRESS 🔃
Build Location: ES-1030866-getting-started

[SyncfusionBuild]

CI Status: SUCCESS ✅
Source Compilation: SUCCESS ✅
Build Location: ES-1030866-getting-started
Technical Error(s): 0
Spelling Error(s): 0
Image Alt Text Error(s): 0
Image Size Error(s): 0
Image Name Error(s): 0
Front matter Error(s): 0
File Path Error(s): 0
CodeSnippet File Path Missing Error(s): 0
Toc Anchor Tags Validation Error(s): 0
MD Tag Validation Error(s): 0

[SyncfusionBuild]

Build Status: INPROGRESS 🔃
Build Location: ES-1030866-getting-started