Apply some suggestions

Signed-off-by: Simone Orru <simone.orru@secomind.com>

Author: sorru94

lib/edgehog_device/file_transfer/download.c

@@ -281,7 +281,7 @@ static edgehog_result_t process_uncompressed_chunk(
     if (eres != EDGEHOG_RESULT_OK) {
         data->posix_errno = EIO;
         data->message = "Failed to write chunk to file";
-        return EDGEHOG_RESULT_HTTP_REQUEST_ABORTED;
+        return eres;
     }
 
     // Stream the new chunk into the SHA-256 hash operation

lib/edgehog_device/include/file_transfer/utils.h

@@ -23,6 +23,9 @@
 /** @brief HTTP request timeout duration in milliseconds. */
 #define EDGEHOG_FT_HTTP_REQ_TIMEOUT_MS (60 * 1000)
 
+/** @brief Size for the output buffer used to temporarely store the compressed chunk. */
+#define EDGEHOG_FT_COMPRESSED_OUT_BUFFER_SIZE 1024
+
 /** @brief Unified user data for HTTP callbacks. */
 typedef struct
 {
@@ -61,7 +64,7 @@ typedef struct
     /** @brief Compression context for outgoing uploaded files */
     file_transfer_compression_ctx_t comp_ctx;
     /** @brief Buffer used to hold the compressed output chunk during uploads */
-    uint8_t comp_out_buf[1024];
+    uint8_t comp_out_buf[EDGEHOG_FT_COMPRESSED_OUT_BUFFER_SIZE];
     /** @brief Track if the underlying file is fully read */
     bool file_exhausted;
     /** @brief Track if the LZ4 footer has been successfully written */