start time runtime env fix

config/runtime.exs

@@ -1,6 +1,7 @@
 import Config
 
 config :plantid_discord_bot,
+  start_time: DateTime.utc_now(),
   guild_ids: [1_002_507_312_159_797_318],
   plantnet_api_key: System.get_env("PLANTNET_API_KEY"),
   fileserver_url: "http://localhost:4321",

lib/application.ex

@@ -5,10 +5,6 @@ defmodule PlantIdDiscordBot.Application do
 
   @impl true
   def start(_type, _args) do
-    # Set the start time for the application
-    start_time = DateTime.utc_now()
-    Application.put_env(:plantid_discord_bot, :start_time, start_time)
-
     children = [
       PlantIdDiscordBot.Consumer,
       PlantIdDiscordBot.RateLimiter,

lib/plantid_discord_bot/utils.ex

@@ -1,8 +1,8 @@
 defmodule PlantIdDiscordBot.Utils do
-  @start_time Application.get_env(:plantid_discord_bot, :start_time)
-
   def get_uptime() do
-    DateTime.diff(DateTime.utc_now(), @start_time)
+    start_time = Application.get_env(:plantid_discord_bot, :start_time)
+
+    DateTime.diff(DateTime.utc_now(), start_time)
     |> PlantIdDiscordBot.Utils.Duration.sec_to_str()
   end