restructure

- users/rin/default.nix -> users/rin.nix
- users/rin/home.nix +-> users/rin.nix
- users/rin/*.nix -> modules/user/*.nix
- users/rin/scripts/ -> scripts/
- hosts/winter/default.nix -> hosts/winter.nix
- hosts/winter/*.nix -> modules/system/*.nix

- modules are dynamically imported as sets for system and user

modules/user/dunst.nix

@@ -0,0 +1,68 @@
+# TODO: i've literally never configured dunst ever since i first installed it (the rc was copypasted from somewhere i forgot im sorry), should play around with it later
+{ config, ... }: {
+  services.dunst = {
+    enable = true;
+    settings = {
+      global = {
+        monitor = 0;
+        follow = "mouse";
+        #geometry = "250x50-24+24";
+        geometry = "600x50-24+24";
+        indicate_hidden = true;
+        shrink = true;
+        separator_height = 0;
+        padding = 16;
+        horizontal_padding = 24;
+        frame_width = 2;
+        sort = false;
+        idle_threshold = 120;
+        font = "Open Sans 8";
+        line_height = 4;
+        markup = "full";
+        format = "<b>%s</b>\\n%b";
+        alignment = "left";
+        show_age_threshold = 60;
+        word_wrap = true;
+        ignore_newline = false;
+        stack_duplicates = false;
+        hide_duplicate_count = true;
+        show_indicators = false;
+        icon_position = "left";
+        max_icon_size = 32;
+        sticky_history = true;
+        history_length = 20;
+        browser = "/run/current-system/sw/bin/firefox -new-tab";
+        always_run_script = true;
+        title = "Dunst";
+        class = "Dunst";
+        corner_radius = 5;
+      };
+
+      shortcuts = {
+        close = "ctrl+space";
+        close_all = "ctrl+shift+space";
+        history = "ctrl+grave";
+        context = "ctrl+shift+period";
+      };
+
+      urgency_low = {
+        background = "#2f343f";
+        foreground = "#d8dee8";
+        timeout = 2;
+      };
+
+      urgency_normal = {
+        background = "#2f343f";
+        foreground = "#d8dee8";
+        timeout = 4;
+      };
+
+      urgency_critical = {
+        background = "#2f343f";
+        foreground = "#d8dee8";
+        frame_color = "#bf616a";
+        timeout = 0;
+      };
+    };
+  };
+}