Documentation(1029584): Move the React Spreadsheet UG content into ASP.Net Core platform UG

[MOHANRAJSF4991]

1029584: Move the React Spreadsheet UG content into ASP.Net Core platform UG content.

Code Studio usage(Mandatory)

• Code Studio used in this PR/MR?
  • Yes
  • No
• If Yes: Primary use (choose one)
  • Generate new code
  • Refactor/improve existing code
  • Tests
  • Bug fix / debugging help
  • Docs / comments
  • Review assistance (explanations/summaries)
  • Other (Implemented Card support with the help of tags provided in loop page. So, Continue AI is not used in this PR)
• Outcome
  • Saved time (AI made development faster)
  • Neutral (No major difference)
  • Cost time (AI slowed things down)- If “Cost time”: 1-line explanation

[SyncfusionBuild]

Build Status: INPROGRESS 🔃
Build Location: EJ2-1029584-asp-core-porting

[SyncfusionBuild]

CI Status: FAILURE ❌
Source Compilation: SUCCESS ✅
Failure Reason: CI Failure with violation
Build Location: EJ2-1029584-asp-core-porting
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): 30
File Path Error(s): 1
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: EJ2-1029584-asp-core-porting

[SyncfusionBuild]

The running CI Job is terminated due to changes committed on the source branch for this Merge Request and CI triggered for latest commit.

[SyncfusionBuild]

CI Status: ABORTED ❌
Source Compilation: Not Started ❌
Build Location: EJ2-1029584-asp-core-porting

[SyncfusionBuild]

Build Status: INPROGRESS 🔃
Build Location: EJ2-1029584-asp-core-porting

[SyncfusionBuild]

CI Status: FAILURE ❌
Source Compilation: SUCCESS ✅
Failure Reason: CI Failure with violation
Build Location: EJ2-1029584-asp-core-porting
Technical Error(s): 0
Spelling Error(s): 0
Image Alt Text Error(s): 0
Image Size Error(s): 6
Image Name Error(s): 0
Front matter Error(s): 30
File Path Error(s): 1
CodeSnippet File Path Missing Error(s): 0
Toc Anchor Tags Validation Error(s): 0
MD Tag Validation Error(s): 0