chore(EditorConfig): simplified configuration

[ArgoZhang]

Link issues

fixes #7111

Summary By Copilot

Regression?

• Yes
• No

Risk

• High
• Medium
• Low

Verification

• Manual (required)
• Automated

Packaging changes reviewed?

• Yes
• No
• N/A

☑️ Self Check before Merge

⚠️ Please check all items below before review. ⚠️

• Doc is updated/provided or not needed
• Demo is updated/provided or not needed
• Merge the latest code from the main branch

Summary by Sourcery

Simplify EditorConfig settings and delete the obsolete solution file to address issue #7111

Enhancements:

• Simplify the .editorconfig configuration to remove unnecessary settings

Chores:

• Remove the obsolete BootstrapBlazor.sln solution file

[sourcery-ai]

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[Copilot]

Pull Request Overview

This PR simplifies the EditorConfig configuration and removes the legacy Visual Studio solution file (.sln) as part of issue #7111. The changes reduce the .editorconfig from 246 lines to 22 lines by removing extensive C#, VB, and ReSharper-specific formatting rules, keeping only essential formatting settings.

Key changes:

• Removed the traditional BootstrapBlazor.sln file (137 lines) - migrated to .slnx format
• Simplified .editorconfig by removing detailed C#/VB coding conventions and ReSharper settings
• Retained core EditorConfig settings: charset, indentation, whitespace, and file headers

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 3 comments.

File	Description
BootstrapBlazor.sln	Removed legacy solution file, migrating to .slnx format
.editorconfig	Simplified configuration to essential settings only, removing verbose language-specific rules

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (4aa98f7) to head (b9aeb97).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##              main     #7112   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files          745       745           
  Lines        32548     32548           
  Branches      4510      4510           
=========================================
  Hits         32548     32548           

Flag	Coverage Δ
BB	100.00% <ø> (?)

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