Fix crash when decoding emojis with spaces in URLs

Pachyderm/Model/Emoji.swift

@@ -14,6 +14,25 @@ public class Emoji: Codable {
     public let staticURL: URL
     public let visibleInPicker: Bool
     
+    public required init(from decoder: Decoder) throws {
+        let container = try decoder.container(keyedBy: CodingKeys.self)
+        
+        self.shortcode = try container.decode(String.self, forKey: .shortcode)
+        if let url = try? container.decode(URL.self, forKey: .url) {
+            self.url = url
+        } else {
+            let str = try container.decode(String.self, forKey: .url)
+            self.url = URL(string: str.replacingOccurrences(of: " ", with: "%20"))!
+        }
+        if let url = try? container.decode(URL.self, forKey: .staticURL) {
+            self.staticURL = url
+        } else {
+            let staticStr = try container.decode(String.self, forKey: .staticURL)
+            self.staticURL = URL(string: staticStr.replacingOccurrences(of: " ", with: "%20"))!
+        }
+        self.visibleInPicker = try container.decode(Bool.self, forKey: .visibleInPicker)
+    }
+    
     private enum CodingKeys: String, CodingKey {
         case shortcode
         case url