Everywhere: Make ByteBuffer::{create_*,copy}() OOM-safe

Author: https://github.com/alimpfard
Commit: 97e97bccab
Pull-request: https://github.com/SerenityOS/serenity/pull/9832
Reviewed-by: https://github.com/IdanHo

Userland/Libraries/LibSQL/Heap.cpp

@@ -203,7 +203,8 @@ void Heap::update_zero_block()
         }
     }
 
-    auto buffer = ByteBuffer::create_zeroed(BLOCKSIZE);
+    // FIXME: Handle an OOM failure here.
+    auto buffer = ByteBuffer::create_zeroed(BLOCKSIZE).release_value();
     buffer.overwrite(0, FILE_ID, strlen(FILE_ID));
     buffer.overwrite(VERSION_OFFSET, &m_version, sizeof(u32));
     buffer.overwrite(SCHEMAS_ROOT_OFFSET, &m_schemas_root, sizeof(u32));