Login-pagina: overbodige terugknop verwijderd (showBackButton: false)

HeaderButtonsComponentWidget op de Login-pagina gebruikte nog de
default showBackButton: true, wat een zinloze "Terug"-knop toonde op
een entry-pagina (er is niets om naar terug te gaan). Zelfde bewezen
patroon als Home (P1-20). Bevestigd via verse export:
lib/login/login/login_widget.dart:156 toont nu showBackButton: false.
flutter analyze: alleen bestaande info-level lints, geen nieuwe errors.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

ios/Runner.xcodeproj/project.pbxproj

@@ -44,8 +44,8 @@
 		97C146FB1CF9000F007C117D /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
 		97C146FD1CF9000F007C117D /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
 		97C147001CF9000F007C117D /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
-		6436409127A31CDF00820AF7 /* nl */ = {isa = PBXFileReference; lastKnownFileType = text.plist.strings; name = nl; path = nl.lproj/InfoPlist.strings; sourceTree = "<group>"; };
-		6436409627A31CD700820AF7 /* en */ = {isa = PBXFileReference; lastKnownFileType = text.plist.strings; name = en; path = en.lproj/InfoPlist.strings; sourceTree = "<group>"; };
+		6436409A27A31CDF00820AF7 /* nl */ = {isa = PBXFileReference; lastKnownFileType = text.plist.strings; name = nl; path = nl.lproj/InfoPlist.strings; sourceTree = "<group>"; };
+		6436409F27A31CD300820AF7 /* en */ = {isa = PBXFileReference; lastKnownFileType = text.plist.strings; name = en; path = en.lproj/InfoPlist.strings; sourceTree = "<group>"; };
 		97C147021CF9000F007C117D /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
 /* End PBXFileReference section */
 
@@ -225,8 +225,8 @@
 		6436409C27A31CD800820AF7 /* InfoPlist.strings */ = {
 			isa = PBXVariantGroup;
 			children = (
-				6436409127A31CDF00820AF7 /* nl */,
-				6436409627A31CD700820AF7 /* en */,
+				6436409A27A31CDF00820AF7 /* nl */,
+				6436409F27A31CD300820AF7 /* en */,
 			);
 			name = InfoPlist.strings;
 			sourceTree = "<group>";

lib/login/login/login_widget.dart

@@ -152,7 +152,9 @@ class _LoginWidgetState extends State<LoginWidget> with RouteAware {
                 child: Builder(builder: (_) {
                   return DebugFlutterFlowModelContext(
                     rootModel: _model.rootModel,
-                    child: HeaderButtonsComponentWidget(),
+                    child: HeaderButtonsComponentWidget(
+                      showBackButton: false,
+                    ),
                   );
                 }),
               ),