Replace HStyle singleton by global Theme in Window

src/qml/Chat/Timeline/Daybreak.qml

@@ -3,7 +3,7 @@ import "../../Base"
 
 HNoticePage {
     text: model.date.toLocaleDateString()
-    color: HStyle.chat.daybreak.foreground
-    backgroundColor: HStyle.chat.daybreak.background
-    radius: HStyle.chat.daybreak.radius
+    color: theme.chat.daybreak.foreground
+    backgroundColor: theme.chat.daybreak.background
+    radius: theme.chat.daybreak.radius
 }

src/qml/Chat/Timeline/EventContent.qml

@@ -18,13 +18,13 @@ Row {
 
     Rectangle {
         color: isOwn?
-               HStyle.chat.message.ownBackground :
-               HStyle.chat.message.background
+               theme.chat.message.ownBackground :
+               theme.chat.message.background
 
         //width: nameLabel.implicitWidth
         width: Math.min(
             roomEventListView.width - avatar.width - messageContent.spacing,
-            HStyle.fontSize.normal * 0.5 * 75,  // 600 with 16px font
+            theme.fontSize.normal * 0.5 * 75,  // 600 with 16px font
             Math.max(
                 nameLabel.visible ? nameLabel.implicitWidth : 0,
                 contentLabel.implicitWidth
@@ -60,16 +60,16 @@ Row {
                 id: contentLabel
                 text: Utils.translatedEventContent(model) +
                       // time
-                      "&nbsp;&nbsp;<font size=" + HStyle.fontSize.small +
-                      "px color=" + HStyle.chat.message.date + ">" +
+                      "&nbsp;&nbsp;<font size=" + theme.fontSize.small +
+                      "px color=" + theme.chat.message.date + ">" +
                       Qt.formatDateTime(model.date, "hh:mm:ss") +
                       "</font>" +
                       // local echo icon
                       (model.isLocalEcho ?
-                       "&nbsp;<font size=" + HStyle.fontSize.small +
+                       "&nbsp;<font size=" + theme.fontSize.small +
                        "px>⏳</font>" : "")
 
-                color: HStyle.chat.message.body
+                color: theme.chat.message.body
                 wrapMode: Text.Wrap
 
                 leftPadding: horizontalPadding

src/qml/Chat/Timeline/EventList.qml

@@ -7,7 +7,7 @@ HRectangle {
 
     property int space: 8
 
-    color: HStyle.chat.roomEventList.background
+    color: theme.chat.roomEventList.background
 
     HListView {
         id: roomEventListView