Fix SSK based closed group size inconsistency

src/org/thoughtcrime/securesms/loki/activities/CreateClosedGroupActivity.kt

@@ -118,7 +118,7 @@ class CreateClosedGroupActivity : PassphraseRequiredActionBarActivity(), LoaderM
         if (selectedMembers.count() < 1) {
             return Toast.makeText(this, R.string.activity_create_closed_group_not_enough_group_members_error, Toast.LENGTH_LONG).show()
         }
-        if (selectedMembers.count() > ClosedGroupsProtocol.groupSizeLimit) { // Minus one because we're going to include self later
+        if (selectedMembers.count() >= ClosedGroupsProtocol.groupSizeLimit) { // Minus one because we're going to include self later
             return Toast.makeText(this, R.string.activity_create_closed_group_too_many_group_members_error, Toast.LENGTH_LONG).show()
         }
         val userPublicKey = TextSecurePreferences.getLocalNumber(this)

src/org/thoughtcrime/securesms/loki/activities/EditClosedGroupActivity.kt

@@ -228,7 +228,7 @@ class EditClosedGroupActivity : PassphraseRequiredActionBarActivity() {
         }
 
         val maxGroupMembers = if (isSSKBasedClosedGroup) ClosedGroupsProtocol.groupSizeLimit else Companion.legacyGroupSizeLimit
-        if (members.size > maxGroupMembers) {
+        if (members.size >= maxGroupMembers) {
             // TODO: Update copy for SSK based closed groups
             return Toast.makeText(this, R.string.activity_edit_closed_group_too_many_group_members_error, Toast.LENGTH_LONG).show()
         }