Fixed #1129: Remove national flag from DXCC 506 (Scarborough Reef)

Scarborough Reef is a separate DXCC entity (506), while its
sovereignty is disputed.

Using either the Philippine or Chinese national flag would
therefore imply a political position that is outside
the scope of QLog. QLog should remain apolitical and
represent amateur radio entities according to DXCC/ADIF
data without expressing a position on territorial disputes.

Author: foldynl

Changelog

@@ -28,6 +28,7 @@ TBC - 0.52.0
 - Fixed Offline Map Ant Path calculation
 - Fixed Rotator Widget - Use circular distance for azimuth deadband
 - Fixed QSL confirmation status is not displayed correctly in QSO Detail and tooltip (issue #1125)
+- Fixed Philippine national flag for DXCC 506 (Scarborough Reef) (issue #1129)
 
 2026/07/07 - 0.51.1
 - Fixed WSJTX QSO Name Field is cleared (issue #1019)

res/data/dxcc.json

@@ -384,7 +384,7 @@
     {"id":503,"name":"Czech Republic","cqz":15,"ituz":28,"flag":"CZ"},
     {"id":504,"name":"Slovak Republic","cqz":15,"ituz":28,"flag":"SK"},
     {"id":505,"name":"Pratas Island","cqz":24,"ituz":44,"flag":"TW"},
-    {"id":506,"name":"Scarborough Reef","cqz":27,"ituz":50,"flag":"PH"},
+    {"id":506,"name":"Scarborough Reef","cqz":27,"ituz":50,"flag":null},
     {"id":507,"name":"Temotu Province","cqz":32,"ituz":51,"flag":"SB"},
     {"id":508,"name":"Austral Islands","cqz":32,"ituz":63,"flag":"PF"},
     {"id":509,"name":"Marquesas Islands","cqz":31,"ituz":63,"flag":"FR"},