Enhance status bar with new buttons for tree view and settings; refactor existing button setup

package.json

@@ -21,7 +21,13 @@
       },
       {
         "command": "prompter.generatePrompt",
-        "title": "Copy"
+        "title": "Copy",
+        "icon": "$(clippy)"
+      },
+      {
+        "command": "prompter.openTreeView",
+        "title": "Show Tree View",
+        "icon": "$(list-tree)"
       },
       {
         "command": "prompter.openSettings",
@@ -42,7 +48,8 @@
       "prompter-sidebar": [
         {
           "id": "prompterView",
-          "name": "Prompter"
+          "name": "Prompter",
+          "icon": "resources/icon.svg"
         }
       ]
     },
@@ -54,9 +61,14 @@
           "when": "view == prompterView"
         },
         {
-          "command": "prompter.openSettings",
+          "command": "prompter.openTreeView",
           "group": "navigation@2",
           "when": "view == prompterView"
+        },
+        {
+          "command": "prompter.openSettings",
+          "group": "navigation@3",
+          "when": "view == prompterView"
         }
       ],
       "view/item/context": [
@@ -95,4 +107,4 @@
     "@vscode/vsce": "^3.2.2",
     "ignore": "^7.0.3"
   }
-}
+}