Restructure source and resource files (#46)

importantly, res is now res/res and css is now res/css

src/components/ratelimitindicator.hpp

@@ -0,0 +1,31 @@
+#pragma once
+#include <gtkmm.h>
+#include <unordered_map>
+#include <chrono>
+#include "discord/message.hpp"
+
+class RateLimitIndicator : public Gtk::Box {
+public:
+    RateLimitIndicator();
+    void SetActiveChannel(Snowflake id);
+
+    // even tho this probably isnt the right place for this im gonna do it anyway to reduce coad
+    bool CanSpeak() const;
+
+private:
+    int GetTimeLeft() const;
+    int GetRateLimit() const;
+    bool UpdateIndicator();
+    void OnMessageCreate(const Message &message);
+    void OnMessageSendFail(const std::string &nonce, float rate_limit);
+    void OnChannelUpdate(Snowflake channel_id);
+
+    Gtk::Image m_img;
+    Gtk::Label m_label;
+
+    sigc::connection m_connection;
+
+    int m_rate_limit;
+    Snowflake m_active_channel;
+    std::unordered_map<Snowflake, std::chrono::time_point<std::chrono::steady_clock>> m_times; // time point of when next message can be sent
+};