Renamed some variables to make it a bit clearer and made sure it supported a port in the url

SessionMessagingKit/Open Groups/OpenGroupManager.swift

@@ -97,23 +97,25 @@ public final class OpenGroupManager: NSObject {
     public func hasExistingOpenGroup(roomToken: String, server: String, publicKey: String, using transaction: YapDatabaseReadWriteTransaction, dependencies: OGMDependencies = OGMDependencies()) -> Bool {
         guard let serverUrl: URL = URL(string: server) else { return false }
         
-        let schemeFreeServer: String = (serverUrl.host ?? server)
-        let schemeFreeDefaultServer: String = OpenGroupAPI.defaultServer.substring(from: "http://".count)
+        let serverHost: String = (serverUrl.host ?? server)
+        let serverPort: String = (serverUrl.port.map { ":\($0)" } ?? "")
+        let defaultServerHost: String = OpenGroupAPI.defaultServer.substring(from: "http://".count)
         var serverOptions: Set<String> = Set([
-            schemeFreeServer,
-            "http://\(schemeFreeServer)",
-            "https://\(schemeFreeServer)"
+            server,
+            "\(serverHost)\(serverPort)",
+            "http://\(serverHost)\(serverPort)",
+            "https://\(serverHost)\(serverPort)"
         ])
         
-        if schemeFreeServer == OpenGroupAPI.legacyDefaultServerDNS {
+        if serverHost == OpenGroupAPI.legacyDefaultServerDNS {
             let defaultServerOptions: Set<String> = Set([
-                schemeFreeDefaultServer,
+                defaultServerHost,
                 OpenGroupAPI.defaultServer,
-                "https://\(schemeFreeDefaultServer)"
+                "https://\(defaultServerHost)"
             ])
             serverOptions = serverOptions.union(defaultServerOptions)
         }
-        else if schemeFreeServer == schemeFreeDefaultServer {
+        else if serverHost == defaultServerHost {
             let legacyServerOptions: Set<String> = Set([
                 OpenGroupAPI.legacyDefaultServerDNS,
                 "http://\(OpenGroupAPI.legacyDefaultServerDNS)",