Validates what the user enters (the title, description and people has valid values)
Listens to a click on the button (submission of the form)
Creates new project.
The array is then rendered to the list, the entire list also needs to be added to the DOM.
Switch projects between the lists with drag and drop
* Template tags are default html tags supported by modern browsers which allow us to specify some html code which is not loaded immediately which is not visible immediately which is not rendered immediately but instead which can be reached via JavaScript (therefore also TypeScript) to control when we wanna render it.