Removed a delay before starting pollers which is no longer needed

Session.xcodeproj/project.pbxproj

@@ -7706,7 +7706,7 @@
 				CLANG_WARN__ARC_BRIDGE_CAST_NONARC = YES;
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
 				CODE_SIGN_IDENTITY = "iPhone Developer";
-				CURRENT_PROJECT_VERSION = 482;
+				CURRENT_PROJECT_VERSION = 484;
 				ENABLE_BITCODE = NO;
 				ENABLE_STRICT_OBJC_MSGSEND = YES;
 				ENABLE_TESTABILITY = YES;
@@ -7743,7 +7743,7 @@
 				GCC_WARN_UNUSED_VARIABLE = YES;
 				HEADER_SEARCH_PATHS = "";
 				IPHONEOS_DEPLOYMENT_TARGET = 13.0;
-				MARKETING_VERSION = 2.7.3;
+				MARKETING_VERSION = 2.7.4;
 				ONLY_ACTIVE_ARCH = YES;
 				OTHER_CFLAGS = (
 					"-fobjc-arc-exceptions",
@@ -7784,7 +7784,7 @@
 				CLANG_WARN__ARC_BRIDGE_CAST_NONARC = YES;
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
 				CODE_SIGN_IDENTITY = "iPhone Distribution";
-				CURRENT_PROJECT_VERSION = 482;
+				CURRENT_PROJECT_VERSION = 484;
 				ENABLE_BITCODE = NO;
 				ENABLE_STRICT_OBJC_MSGSEND = YES;
 				GCC_NO_COMMON_BLOCKS = YES;
@@ -7816,7 +7816,7 @@
 				GCC_WARN_UNUSED_VARIABLE = YES;
 				HEADER_SEARCH_PATHS = "";
 				IPHONEOS_DEPLOYMENT_TARGET = 13.0;
-				MARKETING_VERSION = 2.7.3;
+				MARKETING_VERSION = 2.7.4;
 				ONLY_ACTIVE_ARCH = NO;
 				OTHER_CFLAGS = (
 					"-DNS_BLOCK_ASSERTIONS=1",

Session/Meta/AppDelegate.swift

@@ -805,10 +805,9 @@ class AppDelegate: UIResponder, UIApplicationDelegate, UNUserNotificationCenterD
     public func startPollersIfNeeded(shouldStartGroupPollers: Bool = true) {
         guard Identity.userExists() else { return }
         
-        /// There is a fun issue where if you launch without any valid paths then the pollers are guaranteed to fail their first poll due to
-        /// trying and failing to build paths without having the `SnodeAPI.snodePool` populated, by waiting for the
-        /// `JobRunner.blockingQueue` to complete we can have more confidence that paths won't fail to build incorrectly
-        JobRunner.afterBlockingQueue { [weak self] in
+        /// Start the pollers on a background thread so that any database queries they need to run don't
+        /// block the main thread
+        DispatchQueue.global(qos: .background).async { [weak self] in
             self?.poller.start()
             
             guard shouldStartGroupPollers else { return }