re-rendering strategy

[jiin-kim109]

Description:

Considerable strategies for optimizing rendering events:

1. DOM MutateObserver
   https://velog.io/@ggong/MutationObserver

2. OnClick Event

3. config.js
   e.g.

config = {
    goSfuRenderingInterval: 5000,
    myScheduleRenderingInterval: 5000
}
export default config;

Acceptance Criteria:
Test strategy (1) and (2) if they are applicable. If not, adopt (3) and edit goSfu.js and mySchedule.js to import the config object and use properties instead of the hard coded values