Removed unnecessary console output for non-critical features, including `console.log`, `console.warn`, and `console.error` statements in `setQualityOptions`, `renderTextLayer`, and `renderThumbnail` methods. This reduces noise in production logs.
Added a CSS variable `--scale-factor` to the text layer's `style` in `renderTextLayer` to ensure proper scaling and improve text rendering accuracy. These changes enhance code cleanliness and robustness.