feat(ios) support for destroying & reinitializing the react native bridge

ios/sdk/src/JitsiMeet.h

 
 #pragma mark - Utility methods
 
+/**
+ * Once  the react native bridge is destroyed you are responsible for reinstantiating it back. Use this method to do so.
+ */
+- (void)instantiateReactNativeBridge;
+
+/**
+ * Helper method to destroy the react native bridge, cleaning up resources in the process. Once the react native bridge is destroyed you are responsible for reinstantiating it back using `instantiateReactNativeBridge` method.
+ */
+- (void)destroyReactNativeBridge;
+
 - (JitsiMeetConferenceOptions *_Nonnull)getInitialConferenceOptions;
 
 - (BOOL)isCrashReportingDisabled;

ios/sdk/src/JitsiMeet.m

 #import <RNGoogleSignin/RNGoogleSignin.h>
 #import <WebRTC/RTCLogging.h>
 
-
 @implementation JitsiMeet {
     RCTBridgeWrapper *_bridgeWrapper;
     NSDictionary *_launchOptions;
 
 - (instancetype)init {
     if (self = [super init]) {
-        // Initialize the on and only bridge for interfacing with React Native.
+        // Initialize the one and only bridge for interfacing with React Native.
         _bridgeWrapper = [[RCTBridgeWrapper alloc] init];
         
         // Initialize the listener for handling start/stop screensharing notifications.
 
 #pragma mark - Utility methods
 
+- (void)instantiateReactNativeBridge {
+    if (_bridgeWrapper != nil) {
+        return;
+    };
+    
+    _bridgeWrapper = [[RCTBridgeWrapper alloc] init];
+}
+
+- (void)destroyReactNativeBridge {
+    _bridgeWrapper = nil;
+}
+
 - (JitsiMeetConferenceOptions *)getInitialConferenceOptions {
     if (_launchOptions[UIApplicationLaunchOptionsURLKey]) {
         NSURL *url = _launchOptions[UIApplicationLaunchOptionsURLKey];