feat: new label module

Takes a text label, with the ability to include embedded scripts.

Resolves #80.

examples/config.corn

@@ -67,6 +67,8 @@ let {
 
     $clipboard = { type = "clipboard" max_items = 3 truncate.mode = "end" truncate.length = 50 }
 
+    $label = { type = "label" label = "random num: {{500:echo $RANDOM}}" }
+
     // -- begin custom --
     $button = { type = "button" name="power-btn" label = "" on_click = "popup:toggle" }
 
@@ -97,7 +99,7 @@ let {
     }
     // -- end custom --
 
-    $left = [ $workspaces $launcher ]
+    $left = [ $workspaces $launcher $label ]
     $right = [ $mpd_local $mpd_server $phone_battery $sys_info $clipboard $power_menu $clock ]
 }
 in {

examples/config.json

@@ -126,6 +126,10 @@
       "show_icons": true,
       "show_names": false,
       "type": "launcher"
+    },
+    {
+      "label": "random num: {{500:echo $RANDOM}}",
+      "type": "label"
     }
   ]
 }

examples/config.toml

@@ -116,3 +116,7 @@ favorites = [
     'Steam',
 ]
 
+[[start]]
+label = 'random num: {{500:echo $RANDOM}}'
+type = 'label'
+

examples/config.yaml

@@ -82,4 +82,6 @@ start:
     show_icons: true
     show_names: false
     type: launcher
+  - label: 'random num: {{500:echo $RANDOM}}'
+    type: label