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/polybar.nix

@@ -0,0 +1,97 @@
+{ config, ... }: {
+  services.polybar = {
+    enable = true;
+    script = builtins.readFile ../../scripts/polybar.sh;
+    settings = {
+      "bar/top" = {
+        monitor = "eDP-1";
+        width = "100%";
+        height = 35;
+        #background = "#64506c";
+        background = "#00000000";
+        foreground = "#fff";
+
+        spacing = 2;
+        padding = {
+          left = 5;
+          right = 5;
+          bottom = 5;
+        };
+        override-redirect = true;
+        wm-restack = "bspwm";
+
+        font = [
+          "NotoSans:style=SemiBold:size=11:antialias=true;2"
+          "NotoSans:size=11:antialias=true;2"
+          "MaterialIcons:size=17:antialias=true;6"
+
+          "HanaMinA:size=9.8;1"
+          "HanaMinB:size=9.8;1"
+        ];
+
+        modules = {
+          left = "workspaces";
+          center = "title";
+          right = "datetime";
+        };
+
+        enable-ipc = true;
+        scroll = {
+          up = "#workspaces.prev";
+          down = "#workspaces.next";
+        };
+      };
+
+      "module/workspaces" = {
+        type = "internal/bspwm";
+
+        pin-workspaces = true;
+        enable-click = true;
+        enable-scroll = false;
+        reverse-scroll = false;
+
+        #ws-icon.default = "%{T3}"; # ef4a
+        label = {
+          monitor = "";
+          focused = "%{T3}"; # ef4a
+          occupied = {
+            text = "%{T3}"; # e837
+            foreground = "#80FFFFFF";
+          };
+          empty = {
+            text = "%{T3}"; # ef4a
+            foreground = "#80FFFFFF";
+          };
+          urgent = {
+            text = "%{T3}"; # e837
+            foreground = "#EE1012";
+          };
+
+          separator = {
+            text = " ";
+            padding = "0";
+          };
+        };
+      };
+
+      "module/title" = {
+        type = "internal/xwindow";
+        format = {
+          text = "%{T1}<label>";
+          padding = 4;
+        };
+      };
+
+      "module/datetime" = {
+        type = "internal/date";
+        date = {
+          text = "%{T1}%%{F#fff}%H:%M%%{F-}";
+          alt = "%{T2}%%{F#ccc}%A, %d %B %Y  %{T1}%%{F#fff}%H:%M%%{F#666}:%{T2}%%{F#ccc}%S%%{F-}";
+        };
+        format = {
+          padding = 4;
+        };
+      };
+    };
+  };
+}