More clock hand scaling improvements

* Optimized clock hand scaling to improve performance. * Decreased the number height to prevent overlap in some circumstances. * Made the dark scheme's second hand slightly lighter. * Implemented a background for the zoom controls. * Modified the HTML title to display the current time.

Improved the scaling of the clock hands and center post.

- Modified the color for the light clock face. - Improved the scale used for calculating number sizes. - Implemented a backdrop so the classic style background isn't all black.

- Light and dark color scheme support - Backend optimization which should increase performance on all device types - Bug fixes that prevented the device type from being detected in some circumstances - Various minor design tweaks and improvements

- The size of the hour and minutes numbers now scales according to their distance from the center. - The second hand now sizes itself by scaling instead of rebuilding, which should provide performance improvements. - Improved error handling when fetching the perfect time.

- Replaced the default clock style with a rectangular clock which dynamically sizes itself to fill your screen. - You can still switch back to the classic circle clock if your heart so desires.