Update version to 1.1.5 in README and podspec

- Updated the version number in README.md and STBaseProject.podspec from 1.1.4 to 1.1.5.
- Adjusted package dependency instructions to reflect the new version.

Refactor STBaseView and STHTTPSession for improved functionality and …

…code clarity

- Updated STBaseView methods to include @objc attribute for compatibility with Objective-C.
- Removed unnecessary variable declarations in STHTTPSession and improved session setup.
- Enhanced STRequestConfig to conform to Sendable for better concurrency support.
- Adjusted notification handling in STProgressHUD for iOS version compatibility.
- Fixed image loading logic in STTabBarItemModel to use optional binding.
- Improved intrinsic content size calculation in STLabel.
- Updated timestamp parsing in STLogEntry for better accuracy.