replace material design icons for copy and select more

deltachat-ios/Assets.xcassets/ic_check.imageset/Contents.json

@@ -1,23 +0,0 @@
-{
-  "images" : [
-    {
-      "filename" : "baseline_check_circle_outline_white_36pt_1x.png",
-      "idiom" : "universal",
-      "scale" : "1x"
-    },
-    {
-      "filename" : "baseline_check_circle_outline_white_36pt_2x.png",
-      "idiom" : "universal",
-      "scale" : "2x"
-    },
-    {
-      "filename" : "baseline_check_circle_outline_white_36pt_3x.png",
-      "idiom" : "universal",
-      "scale" : "3x"
-    }
-  ],
-  "info" : {
-    "author" : "xcode",
-    "version" : 1
-  }
-}

deltachat-ios/Assets.xcassets/ic_close_18pt.imageset/Contents.json

@@ -1,20 +0,0 @@
-{
-  "images" : [
-    {
-      "idiom" : "universal",
-      "scale" : "1x"
-    },
-    {
-      "idiom" : "universal",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "universal",
-      "scale" : "3x"
-    }
-  ],
-  "info" : {
-    "version" : 1,
-    "author" : "xcode"
-  }
-}

deltachat-ios/Assets.xcassets/ic_close_18pt_3x.imageset/Contents.json

@@ -1,20 +0,0 @@
-{
-  "images" : [
-    {
-      "idiom" : "universal",
-      "scale" : "1x"
-    },
-    {
-      "idiom" : "universal",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "universal",
-      "scale" : "3x"
-    }
-  ],
-  "info" : {
-    "version" : 1,
-    "author" : "xcode"
-  }
-}

deltachat-ios/Assets.xcassets/ic_content_copy_white_36pt.imageset/Contents.json

@@ -1,26 +0,0 @@
-{
-  "images" : [
-    {
-      "filename" : "baseline_content_copy_white_36pt_1x.png",
-      "idiom" : "universal",
-      "scale" : "1x"
-    },
-    {
-      "filename" : "baseline_content_copy_white_36pt_2x.png",
-      "idiom" : "universal",
-      "scale" : "2x"
-    },
-    {
-      "filename" : "baseline_content_copy_white_36pt_3x.png",
-      "idiom" : "universal",
-      "scale" : "3x"
-    }
-  ],
-  "info" : {
-    "author" : "xcode",
-    "version" : 1
-  },
-  "properties" : {
-    "template-rendering-intent" : "template"
-  }
-}

deltachat-ios/Chat/ChatViewController.swift

@@ -103,7 +103,7 @@ class ChatViewController: UITableViewController {
     private lazy var contextMenu: ContextMenuProvider = {
         let copyItem = ContextMenuProvider.ContextMenuItem(
         title: String.localized("global_menu_edit_copy_desktop"),
-        imageName: "ic_content_copy_white_36pt",
+        imageName: "doc.on.doc",
         action: #selector(BaseMessageCell.messageCopy),
         onPerform: { [weak self] indexPath in
                 guard let self = self else { return }
@@ -173,7 +173,7 @@ class ChatViewController: UITableViewController {
 
         let selectMoreItem = ContextMenuProvider.ContextMenuItem(
             title: String.localized("select_more"),
-            imageName: "ic_check",
+            imageName: "checkmark.circle",
             action: #selector(BaseMessageCell.messageSelectMore),
             onPerform: { indexPath in
                 DispatchQueue.main.async { [weak self] in