sprint-11-release-candidate

What's Changed

• refactor: rename video1/2 to reference/current by @akriese in #222
• fix div by zero on empty string by @fs3itz in #213
• feat(gui): disable the navigation buttons if their actions are not possible by @akriese in #224
• added creation metadata on video creator by @a-miscellaneous in #225
• Test(GUI): Adding two testvideos by @simonsasse in #236
• test(GUI): Change date of testVideos such that reference is older. by @simonsasse in #238
• feat(gui): error handling to prevent program crashes by @akriese in #223
• fix(gui): warn that the ref video is newer by @akriese in #237
• Apply Material Design 3 by @zino212 in #231
• add deliverables for sprint 11 by @lukas-monet in #241
• fix(gui): weird timeline label offset on some PCs by @akriese in #242
• Gui/feature/overview timeline by @AlperK61 in #243
• Fix(GUI): Fix overview timeline displaying diff as deletions. by @simonsasse in #245
• Set new version number based on sprint number by @zino212 in #240

Full Changelog: sprint-10-release...sprint-11-release-candidate