feat(yazi): enlarge image previews and add four plugins (#469)

Assisted-by: DeepSeek Harness (deepseek-flash)

home/base/core/yazi.nix

@@ -13,6 +13,58 @@
         show_hidden = true;
         sort_dir_first = true;
       };
+      preview = {
+        max_width = 2000;
+        max_height = 2000;
+      };
+      plugin.prepend_fetchers = [
+        {
+          url = "*";
+          run = "git";
+          group = "git";
+        }
+        {
+          url = "*/";
+          run = "git";
+          group = "git";
+        }
+      ];
     };
+    plugins = with pkgs.yaziPlugins; {
+      git = {
+        package = git;
+        setup = true;
+        settings = {
+          order = 1500;
+        };
+      };
+      inherit
+        jump-to-char
+        toggle-pane
+        zoom
+        ;
+    };
+    keymap.mgr.prepend_keymap = [
+      {
+        on = "=";
+        run = "plugin zoom 1";
+        desc = "Zoom in the preview";
+      }
+      {
+        on = "-";
+        run = "plugin zoom -1";
+        desc = "Zoom out the preview";
+      }
+      {
+        on = "T";
+        run = "plugin toggle-pane max-preview";
+        desc = "Maximize or restore the preview";
+      }
+      {
+        on = "F";
+        run = "plugin jump-to-char";
+        desc = "Jump to the next file starting with a character";
+      }
+    ];
   };
 }