[FEATURE REQUEST] Support for removing leading zero in 12-hour format

### Please confirm these before moving forward - [x] I have searched for my feature proposal and not found a work-in-progress/duplicate/resolved/discarded issue. - [x] This proposal is a completely new feature. If you want to suggest an improvement or an enhancement, please use [this template](https://github.com/marticliment/ElevenClock/issues/new?assignees=marticliment&labels=enhancement&projects=&template=enhancement-improvement.yml&title=%5BENHANCEMENT%5D+%28Enter+your+description+here%29). ### Describe the new feature First off, thank you for this great tool — I’ve donated and really appreciate your work! I’d love to see support for removing the leading zero in 12-hour time format (e.g., 2:30 PM instead of 02:30 PM). I understand ElevenClock follows the C89 strftime standard, but if there's any way to support modifiers like %-I, or offer a toggle for this, it would be a great enhancement. Also, I noticed ElevenClock overlaps the notification area and cuts off icons like the battery. If possible, could there be an option to better align or avoid overlapping the system tray? I did remove the notification icon, so that helped show the battery icon. Thanks again for your work! ### Describe how this new feature could help users For aesthetics, no need to have a leading zero and it will be consistent with your default format.