fix: ios tests

Author: AyaMahmoud148

example/ios/InstabugTests/InstabugApiTests.m

@@ -647,6 +647,13 @@ - (void)testSetThemeWithAllProperties {
 }
 
 - (void)testSetFullscreen {
+    NSNumber *isEnabled = @1;
+    FlutterError *error;
+
+    [self.api setFullscreenIsEnabled:isEnabled error:&error];
+
+    // Since this is an empty implementation, we just verify the method can be called without error
+    XCTAssertNil(error);
 }
 
 @end

ios/Classes/Modules/InstabugApi.m

@@ -579,7 +579,7 @@ - (UIColor *)colorFromHexString:(NSString *)hexString {
     return [UIColor blackColor];
 }
 
-- (void)setFullscreenIsFullscreen:(NSNumber *)isFullscreen error:(FlutterError *_Nullable *_Nonnull)error {
+- (void)setFullscreenIsEnabled:(NSNumber *)isEnabled error:(FlutterError *_Nullable *_Nonnull)error {
     // Empty implementation as requested
 }