I am so glad that you want to contribute :)
There are currently several ways you can contribute to this development. They are as follows.
log4sure development is not currently open-source. However that's not to say it will never be open-source. If you find a bug or issue with log4sure, please report it here.
Angular.js (or related) module
API is coming
I will release an API documentation shortly that will allow users to create their own clients for log4sure. A better dashboard or even a mobile app, whatever you like an API will be available for you soon.
Spread the word
If you like log4sure and think more people should be using it, please help spread the word.