Everywhere: Add a blank line after copyright header where missing

Author: https://github.com/linusg
Commit: https://github.com/SerenityOS/serenity/commit/d8a3609aa96

Userland/Applications/SpaceAnalyzer/main.cpp

@@ -3,6 +3,7 @@
  *
  * SPDX-License-Identifier: BSD-2-Clause
  */
+
 #include "TreeMapWidget.h"
 #include <AK/LexicalPath.h>
 #include <AK/Queue.h>

Userland/Libraries/LibCrypt/crypt.cpp

@@ -3,6 +3,7 @@
  *
  * SPDX-License-Identifier: BSD-2-Clause
  */
+
 #include <AK/Base64.h>
 #include <AK/Types.h>
 #include <LibCrypto/Hash/SHA2.h>

Userland/Libraries/LibDebug/Dwarf/CompilationUnit.cpp

@@ -3,6 +3,7 @@
  *
  * SPDX-License-Identifier: BSD-2-Clause
  */
+
 #include "CompilationUnit.h"
 #include "DIE.h"
 

Userland/Libraries/LibDebug/Dwarf/Expression.cpp

@@ -3,10 +3,10 @@
  *
  * SPDX-License-Identifier: BSD-2-Clause
  */
+
 #include "Expression.h"
 
 #include <AK/MemoryStream.h>
-
 #include <sys/arch/i386/regs.h>
 
 namespace Debug::Dwarf::Expression {

Userland/Utilities/useradd.cpp

@@ -3,6 +3,7 @@
  *
  * SPDX-License-Identifier: BSD-2-Clause
  */
+
 #include <AK/String.h>
 #include <LibCore/ArgsParser.h>
 #include <ctype.h>