fix(StatusChatInput): 'Unblock' is not vertically aligned in 1-1 chat

`StatusButton` is now used correctly. There are 3 different button variations with preset heights/widths and paddings. The consumer cannot change the height without altering the expected behaviour and display of the button.

Button height is now consistent with chat input.

Fixes #6298

ui/imports/shared/status/StatusChatInput.qml

@@ -1254,11 +1254,9 @@ Rectangle {
     StatusQ.StatusButton {
         id: unblockBtn
         visible: control.isContactBlocked
-        height: messageInput.height - Style.current.halfPadding
         anchors.right: parent.right
         anchors.rightMargin: Style.current.halfPadding
-        anchors.bottom: parent.bottom
-        anchors.bottomMargin: Style.current.padding
+        anchors.bottom: messageInput.bottom
         text: qsTr("Unblock")
         type: StatusQ.StatusBaseButton.Type.Danger
         onClicked: function (event) {