chore: implement nitpicks suggested by coderabbit

Author: trivikr

server/utils/docs/render.ts

@@ -141,7 +141,7 @@ async function renderMergedSymbol(
     jsDocTagsPromise,
   ])
 
-  if (signatures.length > 0) {
+  if (highlightedSignature) {
     lines.push(`<div class="docs-signature">${highlightedSignature}</div>`)
 
     if (symbol.nodes.length > MAX_OVERLOAD_SIGNATURES) {

server/utils/docs/text.ts

@@ -135,10 +135,9 @@ export async function renderMarkdown(text: string, symbolLookup: SymbolLookup):
     codeBlockData.map(({ lang, code }) => highlightCodeBlock(code, lang)),
   )
 
-  for (let i = 0; i < highlightedCodeBlocks.length; i++) {
-    const highlighted = highlightedCodeBlocks[i]!
+  highlightedCodeBlocks.forEach((highlighted, i) => {
     result = result.replace(`__CODE_BLOCK_${i}__`, highlighted)
-  }
+  })
 
   return result
 }