feat: new clipboard manager module

examples/config.json

@@ -5,7 +5,7 @@
       "music_dir": "/home/jake/Music",
       "player_type": "mpd",
       "truncate": {
-        "length": 100,
+        "max_length": 100,
         "mode": "end"
       },
       "type": "music"
@@ -43,6 +43,14 @@
       },
       "type": "sys_info"
     },
+    {
+      "max_items": 3,
+      "truncate": {
+        "length": 50,
+        "mode": "end"
+      },
+      "type": "clipboard"
+    },
     {
       "bar": [
         {
@@ -98,16 +106,6 @@
   "icon_theme": "Paper",
   "position": "bottom",
   "start": [
-    {
-      "bar": [
-        {
-          "size": 32,
-          "src": "file:///path/to/image.jpg",
-          "type": "image"
-        }
-      ],
-      "type": "custom"
-    },
     {
       "all_monitors": false,
       "name_map": {