Swift cleanup: remove duplicate or unnecessary initializers using default values

Signed-off-by: Bryan Montz <bryanmontz@me.com>
Signed-off-by: William Casarin <jb55@jb55.com>

damus/Components/EndBlock.swift

@@ -10,11 +10,7 @@ import SwiftUI
 struct EndBlock: View {
     let height: CGFloat
     
-    init() {
-        self.height = 10.0
-    }
-    
-    init(height: Float) {
+    init(height: Float = 10) {
         self.height = CGFloat(height)
     }