fix(discord_api): default return for isRolePresent

Added a default return value of `false` to isRolePresent.

Author: RickyBhatti

sv_discord_api.lua

@@ -72,6 +72,8 @@ function isRolePresent(user, role)
             return true
         end
     end
+
+    return false
 end
 
 Citizen.CreateThread(function()
@@ -84,4 +86,4 @@ Citizen.CreateThread(function()
 
     local data = decode(guild.data)
     Log("Permission guild was set to: " .. data.name .. " (ID: " .. data.id .. ")")
-end)
+end)