Build/Refactor: lint pre-commit hook and reformat repo to spec (#314)

* build/refactor: move lint/prettier packages to project root, install husky, add pre-commit hook

* refactor: reformat files

* build: put full eslintrc back with all rules

client/src/components/Messages/Content/CodeBlock.jsx

@@ -7,15 +7,9 @@ const CodeBlock = ({ lang, codeChildren }) => {
 
   return (
     <div className="rounded-md bg-black">
-      <CodeBar
-        lang={lang}
-        codeRef={codeRef}
-      />
+      <CodeBar lang={lang} codeRef={codeRef} />
       <div className="overflow-y-auto p-4">
-        <code
-          ref={codeRef}
-          className={`hljs !whitespace-pre language-${lang}`}
-        >
+        <code ref={codeRef} className={`hljs !whitespace-pre language-${lang}`}>
           {codeChildren}
         </code>
       </div>