Diagnostics UI (Dark mode)

Summary:
^
In dark mode, the logs were not visible as font color is white, same as the background color of the label explicitly set to white.

Don't set it to white (unless the text color is changed as well).

Reviewed By: antonk52

Differential Revision: D36015027

fbshipit-source-id: bf37546a13e4a2153f7307ddeebddb23f27f4403

iOS/FlipperKit/FlipperDiagnosticsViewController.m

@@ -63,7 +63,7 @@ static NSString* const kSKCellIdentifier =
                                          self.view.frame.size.width,
                                          self.scrollView.frame.size.height)];
   self.logLabel.numberOfLines = 0;
-  self.logLabel.font = [UIFont fontWithName:@"Arial" size:10];
+  self.logLabel.font = [UIFont systemFontOfSize:10.0f];
   [self.scrollView addSubview:self.logLabel];
 
   self.stateTable = [[UITableView alloc]
@@ -80,7 +80,6 @@ static NSString* const kSKCellIdentifier =
 
   [self.view addSubview:self.stateTable];
   [self.view addSubview:self.scrollView];
-  self.view.backgroundColor = [UIColor whiteColor];
 }
 
 - (void)onUpdate {