rewrite html methods with javascript

[Samlant]

rewrite methods which work with & modify the HTML contents.

Purpose: condense code and allows for more precise control & customization.

Steps:

• rewrite html to include classes;
• write setters for innerText;
• write setters for attrs for a stretch goal as we'll also need to expand the UI (this seems unnecessary ATM!)

[Samlant]

ignore js; this would break our exe packaging. just use BS4 or selectorlax to handle HTML parsing.