fix: add size theme and prop for the ChannelAvatar component

Author: khushal87

examples/SampleApp/ios/Podfile.lock

@@ -1541,7 +1541,7 @@ EXTERNAL SOURCES:
 
 SPEC CHECKSUMS:
   boost: d3f49c53809116a5d38da093a8aa78bf551aed09
-  DoubleConversion: 76ab83afb40bddeeee456813d9c04f67f78771b5
+  DoubleConversion: fea03f2699887d960129cc54bba7e52542b6f953
   FBLazyVector: 56e0e498dbb513b96c40bac6284729ba4e62672d
   FBReactNativeSpec: 146c741a3f40361f6bc13a4ba284678cbedb5881
   Firebase: 91fefd38712feb9186ea8996af6cbdef41473442
@@ -1556,7 +1556,7 @@ SPEC CHECKSUMS:
   FirebaseRemoteConfigInterop: 6efda51fb5e2f15b16585197e26eaa09574e8a4d
   FirebaseSessions: dbd14adac65ce996228652c1fc3a3f576bdf3ecc
   fmt: ff9d55029c625d3757ed641535fd4a75fedc7ce9
-  glog: 69ef571f3de08433d766d614c73a9838a06bf7eb
+  glog: c5d68082e772fa1c511173d6b30a9de2c05a69a2
   GoogleAppMeasurement: f3abf08495ef2cba7829f15318c373b8d9226491
   GoogleDataTransport: 6c09b596d841063d76d4288cc2d2f42cc36e1e2a
   GoogleUtilities: ea963c370a38a8069cc5f7ba4ca849a60b6d7d15