Add font size toggle on code snippets 🔠

[anoopcodehack]

Add font size toggle on code snippets 🔠

File: client/src/components/Board/TaskCard.jsx

Code snippets have fixed tiny font 💀
Hard to read for some people fr!!

Fix:
const [fontSize, setFontSize] = useState(10)

<button onClick={(e) => {
e.stopPropagation()
setFontSize(s => s === 10 ? 13 : 10)
}}
className="text-[10px] text-[#555]
hover:text-purple-400 transition">
{fontSize === 10 ? 'A+' : 'A-'}

<SyntaxHighlighter
customStyle={{ fontSize }}
...

~6 lines! No backend needed 🎯
Super accessible feature!! ♿