feat(ios) drop support for iOS 11

ios/Podfile

-platform :ios, '11.0'
+platform :ios, '12.0'
 workspace 'jitsi-meet'
 require_relative '../node_modules/@react-native-community/cli-platform-ios/native_modules'
 install! 'cocoapods', :deterministic_uuids => false
     target.build_configurations.each do |config|
       config.build_settings['ENABLE_BITCODE'] = 'YES'
       config.build_settings['SUPPORTS_MACCATALYST'] = 'NO'
-      config.build_settings['IPHONEOS_DEPLOYMENT_TARGET'] = '11.0'
+      config.build_settings['IPHONEOS_DEPLOYMENT_TARGET'] = '12.0'
     end
   end
 end

ios/Podfile.lock

   RNWatch: a5320c959c75e72845c07985f3e935e58998f1d3
   Yoga: 96b469c5e81ff51b917b92e8c3390642d4ded30c
 
-PODFILE CHECKSUM: e830b1b5a46d340e22689b146b55dcf24664c6f1
+PODFILE CHECKSUM: 3cc305fd6ee83fff506c10c4805471fa72b61c9a
 
 COCOAPODS: 1.10.1

ios/app/app.xcodeproj/project.pbxproj

 					"$(inherited)",
 					/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include,
 				);
-				IPHONEOS_DEPLOYMENT_TARGET = 11.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.0;
 				MTL_ENABLE_DEBUG_INFO = YES;
 				ONLY_ACTIVE_ARCH = YES;
 				SDKROOT = iphoneos;
 					"$(inherited)",
 					/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include,
 				);
-				IPHONEOS_DEPLOYMENT_TARGET = 11.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.0;
 				MTL_ENABLE_DEBUG_INFO = NO;
 				SDKROOT = iphoneos;
 				SWIFT_COMPILATION_MODE = wholemodule;

ios/app/src/ViewController.m

 /*
- * Copyright @ 2018-present 8x8, Inc.
- * Copyright @ 2017-2018 Atlassian Pty Ltd
+ * Copyright @ 2017-present 8x8, Inc.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * limitations under the License.
  */
 
-#import <Availability.h>
-
 @import CoreSpotlight;
 @import MobileCoreServices;
 @import Intents;  // Needed for NSUserActivity suggestedInvocationPhrase
     [self _onJitsiMeetViewDelegateEvent:@"CONFERENCE_JOINED" withData:data];
 
     // Register a NSUserActivity for this conference so it can be invoked as a
-    // Siri shortcut. This is only supported in iOS >= 12.
-#ifdef __IPHONE_12_0
-    if (@available(iOS 12.0, *)) {
-      NSUserActivity *userActivity
-        = [[NSUserActivity alloc] initWithActivityType:JitsiMeetConferenceActivityType];
-
-      NSString *urlStr = data[@"url"];
-      NSURL *url = [NSURL URLWithString:urlStr];
-      NSString *conference = [url.pathComponents lastObject];
-
-      userActivity.title = [NSString stringWithFormat:@"Join %@", conference];
-      userActivity.suggestedInvocationPhrase = @"Join my Jitsi meeting";
-      userActivity.userInfo = @{@"url": urlStr};
-      [userActivity setEligibleForSearch:YES];
-      [userActivity setEligibleForPrediction:YES];
-      [userActivity setPersistentIdentifier:urlStr];
-
-      // Subtitle
-      CSSearchableItemAttributeSet *attributes
-        = [[CSSearchableItemAttributeSet alloc] initWithItemContentType:(NSString *)kUTTypeItem];
-      attributes.contentDescription = urlStr;
-      userActivity.contentAttributeSet = attributes;
-
-      self.userActivity = userActivity;
-      [userActivity becomeCurrent];
-    }
-#endif
-
+    // Siri shortcut.
+    NSUserActivity *userActivity
+      = [[NSUserActivity alloc] initWithActivityType:JitsiMeetConferenceActivityType];
+
+    NSString *urlStr = data[@"url"];
+    NSURL *url = [NSURL URLWithString:urlStr];
+    NSString *conference = [url.pathComponents lastObject];
+
+    userActivity.title = [NSString stringWithFormat:@"Join %@", conference];
+    userActivity.suggestedInvocationPhrase = @"Join my Jitsi meeting";
+    userActivity.userInfo = @{@"url": urlStr};
+    [userActivity setEligibleForSearch:YES];
+    [userActivity setEligibleForPrediction:YES];
+    [userActivity setPersistentIdentifier:urlStr];
+
+    // Subtitle
+    CSSearchableItemAttributeSet *attributes
+      = [[CSSearchableItemAttributeSet alloc] initWithItemContentType:(NSString *)kUTTypeItem];
+    attributes.contentDescription = urlStr;
+    userActivity.contentAttributeSet = attributes;
+
+    self.userActivity = userActivity;
+    [userActivity becomeCurrent];
 }
 
 - (void)conferenceTerminated:(NSDictionary *)data {

ios/sdk/sdk.xcodeproj/project.pbxproj

 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
-				IPHONEOS_DEPLOYMENT_TARGET = 11.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.0;
 				MTL_ENABLE_DEBUG_INFO = YES;
 				ONLY_ACTIVE_ARCH = YES;
 				SDKROOT = iphoneos;
 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
-				IPHONEOS_DEPLOYMENT_TARGET = 11.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 12.0;
 				MTL_ENABLE_DEBUG_INFO = NO;
 				SDKROOT = iphoneos;
 				SWIFT_COMPILATION_MODE = wholemodule;