Rebrand and update documentation for sharpify-gui

Renamed project references from Pinterest Media Scraper to sharpify-gui across documentation and code. Added release template, new banner image, and example images. Updated README, USAGE, and CONTRIBUTING guides to reflect new upscaling functionality, supported file types, and PyQt6-based UI. Fixed version numbers in main application files and removed obsolete package init file.

Author: ukr-projects

.github/RELEASE_TEMPLATE.md

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+# Release Template
+
+## Version [X.Y.Z] - Release Name (YYYY-MM-DD)
+
+### 🚀 What's New
+
+Brief description of the major features, improvements, or changes in this release.
+
+---
+
+### ✨ Features
+
+- **Feature Name**: Description of the new feature and its benefits
+- **Another Feature**: What this feature does for users
+- **Enhancement**: Improvement to existing functionality
+
+### 🐛 Bug Fixes
+
+- Fixed issue where [describe the problem and solution]
+- Resolved bug causing [specific issue description]
+- Corrected [problem] that affected [functionality]
+
+### 🔧 Improvements
+
+- Improved performance of [specific component/feature]
+- Enhanced [functionality] for better user experience
+- Optimized [process/algorithm] resulting in [benefit]
+
+### 📚 Documentation
+
+- Updated README with new installation instructions
+- Added examples for [specific feature]
+- Improved API documentation for [endpoints/methods]
+
+### 🔒 Security
+
+- Fixed security vulnerability in [component]
+- Updated dependencies to address [security issue]
+- Enhanced [security feature] implementation
+
+### ⚠️ Breaking Changes
+
+**Important**: This release contains breaking changes that may affect your implementation.
+
+- **Change 1**: Description of what changed and migration steps
+- **Change 2**: What users need to update in their code
+- **Deprecated**: [Feature/API] is now deprecated and will be removed in v[X.Y.Z]
+
+### 📦 Dependencies
+
+- Updated [dependency] from v[X.Y.Z] to v[A.B.C]
+- Added new dependency: [package-name] v[X.Y.Z]
+- Removed deprecated dependency: [package-name]
+
+### 📊 Contributors
+- **Contributors**: Thanks to [@username1], [@username2], [@username3]
+
+### 🙏 Acknowledgments
+
+Special thanks to:
+- [@contributor1] for implementing [feature]
+- [@contributor2] for reporting and helping fix [bug]
+- Community members who provided feedback and testing
+
+### 📋 Checksums
+
+**Download Verification**:
+```
+SHA256: [checksum-here]
+MD5: [checksum-here]
+```
+## 📞 Support
+
+- 📧 Email: ujjwalkrai@gmail.com
+- 🐛 Issues: [Repo Issues](https://github.com/uikraft-hub/sharpify-gui/issues)
+- 🔓 Security: [Repo Security](https://github.com/uikraft-hub/sharpify-gui/security)
+- ⛏ Pull Request: [Repo Pull Request](https://github.com/uikraft-hub/sharpify-gui/pulls)
+- 📖 Docs: [Repo Documentation](https://github.com/uikraft-hub/sharpify-gui/tree/main/docs)
+- 📃 Changelog: [Repo Changelog](https://github.com/uikraft-hub/sharpify-gui/docs/CHANGELOG.md)
+---
+
+*This release source code was tested on: Windows, MacOS and Ubuntu*