feat: added tooltips to the missing elements and enabled accessibility on some not natively supported (#2321)

Kit/module/popup.swift

@@ -418,7 +418,7 @@ internal class HeaderView: NSStackView {
     fileprivate func setCloseButton(_ state: Bool) {
         if state && !self.isCloseAction {
             self.activityButton?.image = Bundle(for: type(of: self)).image(forResource: "close")!
-            self.activityButton?.toolTip = localizedString("Close popup")
+            self.activityButton?.toolTip = localizedString("Close")
             self.activityButton?.action = #selector(self.closePopup)
             self.isCloseAction = true
         } else if !state && self.isCloseAction {

Kit/module/settings.swift

@@ -496,7 +496,8 @@ private class WidgetPreview: NSStackView {
         self.layer?.backgroundColor = NSColor.white.cgColor
         
         self.identifier = NSUserInterfaceItemIdentifier(rawValue: type.rawValue)
-        self.toolTip = localizedString("Move widget", type.name())
+        self.setAccessibilityElement(true)
+        self.toolTip = type.name()
         
         self.orientation = .vertical
         self.distribution = .fill