Bump engine to 1.67.0 and update panel graphics

Author: andyleejordan

media/resources/dark/ClosePanel.svg

@@ -6,7 +6,7 @@
   "publisher": "ms-vscode",
   "description": "(Preview) Develop PowerShell modules, commands and scripts in Visual Studio Code!",
   "engines": {
-    "vscode": "^1.65.0"
+    "vscode": "^1.67.0"
   },
   "license": "SEE LICENSE IN LICENSE.txt",
   "homepage": "https://github.com/PowerShell/vscode-powershell/blob/main/README.md",
@@ -281,28 +281,19 @@
         "command": "PowerShell.ClosePanel",
         "title": "Close panel",
         "category": "PowerShell",
-        "icon": {
-          "light": "media/resources/light/ClosePanel.svg",
-          "dark": "media/resources/dark/ClosePanel.svg"
-        }
+        "icon": "$(layout-activitybar-left)"
       },
       {
         "command": "PowerShell.PositionPanelLeft",
         "title": "Move panel left",
         "category": "PowerShell",
-        "icon": {
-          "light": "media/resources/light/MovePanelLeft.svg",
-          "dark": "media/resources/dark/MovePanelLeft.svg"
-        }
+        "icon": "$(layout-sidebar-left)"
       },
       {
         "command": "PowerShell.PositionPanelBottom",
         "title": "Move panel to bottom",
         "category": "PowerShell",
-        "icon": {
-          "light": "media/resources/light/MovePanelBottom.svg",
-          "dark": "media/resources/dark/MovePanelBottom.svg"
-        }
+        "icon": "$(layout-panel-right)"
       }
     ],
     "menus": {
@@ -353,11 +344,6 @@
           "command": "PowerShell.PositionPanelLeft",
           "group": "navigation@98"
         },
-        {
-          "when": "editorLangId == powershell && config.powershell.buttons.showPanelMovementButtons",
-          "command": "PowerShell.ClosePanel",
-          "group": "navigation@99"
-        },
         {
           "when": "editorLangId == powershell && config.powershell.buttons.showRunButtons",
           "command": "PowerShell.Debug.Start",

media/resources/dark/MovePanelBottom.svg

@@ -177,7 +177,7 @@ export class ExtensionCommandsFeature extends LanguageClientConsumer {
                 }),
 
             vscode.commands.registerCommand("PowerShell.ClosePanel",
-                async () => { await vscode.commands.executeCommand("workbench.action.closePanel"); }),
+                async () => { await vscode.commands.executeCommand("workbench.action.togglePanel"); }),
 
             vscode.commands.registerCommand("PowerShell.PositionPanelLeft",
                 async () => { await vscode.commands.executeCommand("workbench.action.positionPanelLeft"); }),