Refactored file structure to make more sense, made default.nixes less verbose

modules/sys/software/nixvim/plugins/extra_plugins.nix

@@ -0,0 +1,52 @@
+{pkgs, ...}: {
+  programs.nixvim = {
+    extraPlugins = [
+      (pkgs.vimUtils.buildVimPlugin {
+        # vimwiki
+        name = "vimwiki";
+        src = pkgs.fetchFromGitHub {
+          owner = "vimwiki";
+          repo = "vimwiki";
+          rev = "705ad1e0dded0e3b7ff5fac78547ab67c9d39bdf";
+          hash = "sha256-Upx29rIPwW/e7Lkmf0PNOpIACnAXIzlkfa6V1p2nYHM=";
+        };
+      })
+      (pkgs.vimUtils.buildVimPlugin {
+        name = "vim-markdown";
+        src = pkgs.fetchFromGitHub {
+          owner = "preservim";
+          repo = "vim-markdown";
+          rev = "8f6cb3a6ca4e3b6bcda0730145a0b700f3481b51";
+          hash = "sha256-ZCCSjZ5Xok4rnIwfa4VUEaz6d3oW9066l0EkoqiTppM=";
+        };
+      })
+      (pkgs.vimUtils.buildVimPlugin {
+        name = "vim-sneak";
+        src = pkgs.fetchFromGitHub {
+          owner = "justinmk";
+          repo = "vim-sneak";
+          rev = "c13d0497139b8796ff9c44ddb9bc0dc9770ad2dd";
+          hash = "sha256-ndWhnV0fgCcqCGwVyM07GfmUB3CitBZbOWvZtsB1tBk=";
+        };
+      })
+      (pkgs.vimUtils.buildVimPlugin {
+        name = "vim-slash";
+        src = pkgs.fetchFromGitHub {
+          owner = "junegunn";
+          repo = "vim-slash";
+          rev = "31aee09b7ea8893a18fa34f65e63e364fc998444";
+          hash = "sha256-hC590lmKBssLCSKPF9O2cnt6TCJkklzbbhDNhf1ozUU=";
+        };
+      })
+      (pkgs.vimUtils.buildVimPlugin {
+        name = "automkdir.nvim";
+        src = pkgs.fetchFromGitHub {
+          owner = "mateuszwieloch";
+          repo = "automkdir.nvim";
+          rev = "beeb2dd76f1c3ac776d901c43217a774f1f045de";
+          hash = "sha256-lKSCZ80b/+OV56858FDK7x/zhcuU/AWuCDe+8NdhziU=";
+        };
+      })
+    ];
+  };
+}