FLUT-949859 - [Others] Updated the issue in Flutter UG documentation

[Mugunthan-Ramalingam]

Description

I have updated the issue in flutter toc file to update the proper link for assist view how to section in UG documentation.

[SyncfusionBuild]

Build Status: INQUEUE 🕒
Build Location: FLUT-949859-UG-changes-assistview

[SyncfusionBuild]

Build Status: INPROGRESS 🔃
Build Location: FLUT-949859-UG-changes-assistview

[SyncfusionBuild]

CI Status: SUCCESS ✅
Source Compilation: SUCCESS ✅
Build Location: FLUT-949859-UG-changes-assistview
Technical Error(s): 0
Spelling Error(s): 0
Image Alt Text Error(s): 0 (Critical: 0, High: 0, Medium: 0, Low: 0, Info: 0)
Image Size Error(s): 0 (Critical: 0, High: 0, Medium: 0, Low: 0, Info: 0)
Image Name Error(s): 0 (Critical: 0, High: 0, Medium: 0, Low: 0, Info: 0)
FT Layout Syntax Error(s): 0 (Critical: 0, High: 0, Medium: 0, Low: 0, Info: 0)
Front matter Error(s): 0 (Critical: 0, High: 0, Medium: 0, Low: 0, Info: 0)
File Path Error(s): 0 (Critical: 0, High: 0, Medium: 0, Low: 0, Info: 0)
CodeSnippet File Path Missing Error(s): 0
Toc Anchor Tags Validation Error(s): 0 (Critical: 0, High: 0, Medium: 0, Low: 0, Info: 0)
MD Tag Validation Error(s): 0 (Critical: 0, High: 0, Medium: 0, Low: 0, Info: 0)

[ghost]

Fine