Merge pull request #32639 from overleaf/fix/figure-modal-zero-byte-file-crash

[web] Fix FileSize crash when uploading zero-byte file in figure modal

GitOrigin-RevId: 6ce0dfa221c44af4df813231c97aac846214b34d

services/web/frontend/js/features/source-editor/components/figure-modal/file-sources/figure-modal-upload-source.tsx

@@ -331,10 +331,10 @@ const FileSize: FC<{ size: number; className?: string }> = ({
     ['TB', 1e12],
     ['PB', 1e15],
   ]
-  const labelIndex = Math.min(
-    Math.floor(Math.log10(size) / 3),
-    BYTE_UNITS.length - 1
-  )
+  const labelIndex =
+    size > 0
+      ? Math.min(Math.floor(Math.log10(size) / 3), BYTE_UNITS.length - 1)
+      : 0
 
   const [label, bytesPerUnit] = BYTE_UNITS[labelIndex]
   const sizeInUnits = Math.round(size / bytesPerUnit)