Meta: Enforce newlines around namespaces

This has come up several times during code review, so let's just enforce
it using a new clang-format 20 option.

UI/Android/src/main/cpp/JNIHelpers.cpp

@@ -8,9 +8,11 @@
 #include <AK/Utf16View.h>
 
 namespace Ladybird {
+
 jstring JavaEnvironment::jstring_from_ak_string(String const& str)
 {
     auto as_utf16 = MUST(AK::utf8_to_utf16(str.code_points()));
     return m_env->NewString(as_utf16.data(), as_utf16.size());
 }
+
 }

UI/Android/src/main/cpp/JNIHelpers.h

@@ -11,6 +11,7 @@
 #include <jni.h>
 
 namespace Ladybird {
+
 class JavaEnvironment {
 public:
     JavaEnvironment(JavaVM* vm)
@@ -45,5 +46,6 @@ private:
     JNIEnv* m_env = nullptr;
     bool m_did_attach_thread = false;
 };
+
 }
 extern JavaVM* global_vm;

UI/Android/src/main/cpp/WebViewImplementationNative.cpp

@@ -15,6 +15,7 @@
 #include <jni.h>
 
 namespace Ladybird {
+
 static Gfx::BitmapFormat to_gfx_bitmap_format(i32 f)
 {
     switch (f) {
@@ -142,4 +143,5 @@ NonnullRefPtr<WebView::WebContentClient> WebViewImplementationNative::bind_web_c
 
     return new_client;
 }
+
 }

UI/Android/src/main/cpp/WebViewImplementationNative.h

@@ -11,6 +11,7 @@
 #include <jni.h>
 
 namespace Ladybird {
+
 class WebViewImplementationNative : public WebView::ViewImplementation {
 public:
     WebViewImplementationNative(jobject thiz);
@@ -42,4 +43,5 @@ private:
     jobject m_java_instance = nullptr;
     Web::DevicePixelSize m_viewport_size;
 };
+
 }