Support all Dynamic Type sizes throughout the app

[aopoka]

What it Does

• Updated the font to use the dynamic type instead of hardcoded size

How I Tested

• Run the app in the simulator
• Open Accessibility Inspector > Settings > change the font size to see how it is adjusting in the app

relates to #136

[aopoka]

@mikaelacaron The only place in the code where I found the font with hardcoded size was the InteractionsView and I updated it, however, I don't see it in the TweetCard while testing