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

users/rin/polybar.nix

@@ -1,97 +0,0 @@
-{ 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;
-        };
-      };
-    };
-  };
-}