ios: pending contact connections UI, core: delete connections on the server when deleting in UI/db (#565)

* ios: started pending connections UI

* ios: UI for pending contact connections complete

* this has to be getter, or it would break JSON parsing

* ios: update "initiated" status of connection

apps/ios/Shared/DebugJSON.playground/Contents.swift

@@ -0,0 +1,20 @@
+import UIKit
+
+let s = """
+          {
+            "contactConnection" : {
+              "contactConnection" : {
+                "viaContactUri" : false,
+                "pccConnId" : 456,
+                "pccAgentConnId" : "cTdjbmR4ZzVzSmhEZHdzMQ==",
+                "pccConnStatus" : "new",
+                "updatedAt" : "2022-04-24T11:59:23.703162Z",
+                "createdAt" : "2022-04-24T11:59:23.703162Z"
+              }
+            }
+          }
+"""
+//let s = "\"2022-04-24T11:59:23.703162Z\""
+let json = getJSONDecoder()
+let d = s.data(using: .utf8)!
+print (try! json.decode(ChatInfo.self, from: d))

apps/ios/Shared/DebugJSON.playground/contents.xcplayground

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<playground version='5.0' target-platform='ios' buildActiveScheme='true' importAppTypes='true'>
+    <timeline fileName='timeline.xctimeline'/>
+</playground>