Ensure conversation list bottom content is always reachable

Signal/src/Loki/View Controllers/HomeVC.swift

@@ -43,6 +43,8 @@ final class HomeVC : BaseVC, UITableViewDataSource, UITableViewDelegate, UIScrol
         result.backgroundColor = .clear
         result.separatorStyle = .none
         result.register(ConversationCell.self, forCellReuseIdentifier: ConversationCell.reuseIdentifier)
+        let bottomInset = Values.newConversationButtonBottomOffset + Values.newConversationButtonExpandedSize + Values.largeSpacing + Values.newConversationButtonCollapsedSize
+        result.contentInset = UIEdgeInsets(top: 0, left: 0, bottom: bottomInset, right: 0)
         return result
     }()