Refactor project structure and update configurations. Now first working version

- Updated `.air.conf` for Nix compatibility and simplified build commands.
- Enhanced `.gitignore` to include `tmp` directory.
- Improved `README.md` with clearer instructions and added language details.
- Refined CSS styles for better UI consistency and added alert styles.
- Upgraded `flake.nix` to use Go 1.24 and improved shell environment setup.
- Modified authentication logic in `auth.go` for better user handling.
- Updated `main.go` to dynamically set the listening port and improved logging.
- Added new `routes.go` file for handling game entry and history.
- Enhanced user models and added statistics tracking in `models.go`.
- Improved template rendering and added user feedback messages in HTML templates.
- Removed obsolete build error logs and binaries.

README.md

@@ -1,9 +1,12 @@
 # QRank
 
-The *easy* tracker for tabletop soccers with QR code integration.
-
+The **easy** tracker for tabletop soccers with QR code integration.
 Everything is still in development. Feel free to open issues and or pull requests.
 
+This application is build with [go](https://go.dev/) and [gin](https://gin-gonic.com/). Other languages like HTML and CSS are used.
+
 ## Getting started
 
-To run the application go to the root directory and run `make run` in the terminal. On a nix system it is possible to run with all dependencies via `make nix`. The listening address is `https://localhost:18765`.
+To run the application go to the root directory and run `make run` in the terminal. On a nix system it is possible to run with all dependencies via `make nix-run`. The default listening address is `http://localhost:18765`.
+
+For a development environment install [air](https://github.com/air-verse/air) and run the development server with `air` from the root directory.