Set color for privacy-cells (#690)

Also: Make light blurple the dark-mode-version of blurple

Mastodon/Scene/Onboarding/Privacy/PrivacyTableViewController.swift

@@ -113,6 +113,7 @@ extension PrivacyTableViewController: UITableViewDataSource {
         let row = viewModel.rows[indexPath.row]
 
         var contentConfiguration = cell.defaultContentConfiguration()
+        contentConfiguration.textProperties.color = Asset.Colors.Brand.blurple.color
         contentConfiguration.text = row.title
 
         cell.contentConfiguration = contentConfiguration

MastodonSDK/Sources/MastodonAsset/Assets.xcassets/Colors/Brand/Blurple.colorset/Contents.json

@@ -11,6 +11,24 @@
         }
       },
       "idiom" : "universal"
+    },
+    {
+      "appearances" : [
+        {
+          "appearance" : "luminosity",
+          "value" : "dark"
+        }
+      ],
+      "color" : {
+        "color-space" : "srgb",
+        "components" : {
+          "alpha" : "1.000",
+          "blue" : "0xFA",
+          "green" : "0x8A",
+          "red" : "0x85"
+        }
+      },
+      "idiom" : "universal"
     }
   ],
   "info" : {