FEAT: Global default lexer configuration

[yanjustino]

This pull request introduces enhancements to the GherXunit framework, focusing on improving usability through global configuration for lexers, updating documentation, and versioning. The most important changes include the addition of a global default lexer configuration, updates to the documentation in README.md, and the release of version 1.3.0.

Framework Enhancements:

• Introduced the GherXunitConfig.DefaultLexer property to allow setting a global default lexer for all tests, simplifying configuration and reducing redundancy. (src/base/GherXunit.Core/StringHandler.cs, src/lib/GherXunit/GherXunit.Content.StringHandler.cs) [1] [2]
• Updated methods to use the global default lexer (GherXunitConfig.DefaultLexer) if specified, falling back to the default lexers otherwise. (src/base/GherXunit.Core/Methods.cs, src/lib/GherXunit/GherXunit.Content.Methods.cs) [1] [2]

Documentation Updates:

• Revised README.md to include new sections on the benefits of GherXunit, usage examples, references, and instructions for defining the global lexer. Removed outdated content about custom lexers. [1] [2]

Versioning:

• Bumped the version of GherXunit from 1.2.0 to 1.3.0 to reflect the new features and improvements. (src/lib/GherXunit/GherXunit.csproj)

Funding Information:

• Added a FUNDING.yml file to specify supported funding platforms and sponsorship options for project contributors. (.github/FUNDING.yml)

[Copilot]

Pull Request Overview

This PR adds a global default lexer setting to simplify test configuration, updates documentation to reflect the new feature, bumps the package version to 1.3.0, and includes funding metadata.

• Introduces GherXunitConfig.DefaultLexer and updates handler methods to honor it.
• Updates README.md with new usage guidance and removes outdated custom-lexer section.
• Bumps version to 1.3.0 and adds .github/FUNDING.yml.

Reviewed Changes

Copilot reviewed 8 out of 8 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
src/lib/GherXunit/GherXunit.csproj	Version bumped from 1.2.0 to 1.3.0
src/lib/GherXunit/GherXunit.Content.StringHandler.cs	Adds GherXunitConfig for global default lexer
src/lib/GherXunit/GherXunit.Content.Methods.cs	Uses GherXunitConfig.DefaultLexer as fallback
src/base/GherXunit.Core/StringHandler.cs	Adds duplicate GherXunitConfig in core assembly
src/base/GherXunit.Core/Methods.cs	Updates core methods to use global default lexer
src/base/GherXunit.Core/Samples/LocalizationTest.cs	Sample now sets GherXunitConfig.DefaultLexer
README.md	Replaces custom-lexer docs with global-lexer guide
.github/FUNDING.yml	Adds project funding configuration

Comments suppressed due to low confidence (1)

src/lib/GherXunit/GherXunit.Content.Methods.cs:77

• There should be a unit test verifying that GherXunitConfig.DefaultLexer is applied when lexer is null, ensuring the fallback logic is covered.

                var stepString = new StringHandler(lexer ?? GherXunitConfig.DefaultLexer ?? Lexers.Default);