v0.3.0

build with msvc2022, qt6.8.1, ffmpeg N-118273-g251de1791e-20250109(BtbN build)

changelog:
Fix long video will not show plot by using Load instead of setHtml,local echarts needed now.
Video analysis now asynchronous.

Notice:
change "large: false" to "large: true" in resource/template.html will improve rendering efficiency(suggest for long video),but lose different colors for i,b,p frames.