style: switch from tab to space indentation in frontend and worker/php

Update biome.json indentStyle from "tab" to "space" and reformat all
files in both workspaces.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

1 files changed, 17 insertions, 17 deletions

diff --git a/frontend/app/components/Gaming/ProblemColumn.tsx b/frontend/app/components/Gaming/ProblemColumn.tsx
index a355ac4..40d0716 100644
--- a/frontend/app/components/Gaming/ProblemColumn.tsx
+++ b/frontend/app/components/Gaming/ProblemColumn.tsx
@@ -3,25 +3,25 @@ import TitledColumn from "../TitledColumn";
 import ProblemColumnContent from "./ProblemColumnContent";
 
 type Props = {
-	title: string;
-	description: string;
-	language: SupportedLanguage;
-	sampleCode: string;
+  title: string;
+  description: string;
+  language: SupportedLanguage;
+  sampleCode: string;
 };
 
 export default function ProblemColumn({
-	title,
-	description,
-	language,
-	sampleCode,
+  title,
+  description,
+  language,
+  sampleCode,
 }: Props) {
-	return (
-		<TitledColumn title={title}>
-			<ProblemColumnContent
-				description={description}
-				sampleCode={sampleCode}
-				language={language}
-			/>
-		</TitledColumn>
-	);
+  return (
+    <TitledColumn title={title}>
+      <ProblemColumnContent
+        description={description}
+        sampleCode={sampleCode}
+        language={language}
+      />
+    </TitledColumn>
+  );
 }