HSpacer component for layouts

TODO.md

@@ -3,6 +3,7 @@
   - Don't bake in size properties for components
 
 - Bug fixes
+  - The damn remember account dialog
   - 100% CPU usage when hitting top edge to trigger messages loading
   - Sending `![A picture](https://picsum.photos/256/256)` → not clickable?
   - Icons aren't reloaded
@@ -20,7 +21,6 @@
   - Add room
   - Leave room
   - Forget room warning popup
-  - Spacer component
   - Prevent using the SendBox if no permission (power levels)
   - Spinner when loading past room events, images or clicking buttons
   - Better theming/styling system

harmonyqml/components/Base/HInterfaceBox.qml

@@ -33,11 +33,11 @@ HScalingBox {
             }
         }
 
-        Item { Layout.fillHeight: true }
+        HSpacer {}
 
         HColumnLayout { id: interfaceBody }
 
-        Item { Layout.fillHeight: true }
+        HSpacer {}
 
         HRowLayout {
             Repeater {

harmonyqml/components/Base/HSpacer.qml

@@ -0,0 +1,7 @@
+import QtQuick 2.7
+import QtQuick.Layouts 1.4
+
+Item {
+    Layout.fillWidth: true
+    Layout.fillHeight: true
+}

harmonyqml/components/Chat/Banners/Banner.qml

@@ -41,7 +41,7 @@ HGlassRectangle {
             Layout.rightMargin: Layout.leftMargin
         }
 
-        Item { Layout.fillWidth: true }
+        HSpacer {}
 
         HRowLayout {
             id: bannerButtons

harmonyqml/components/Chat/RoomHeader.qml

@@ -44,6 +44,6 @@ HGlassRectangle {
                 row.width - row.totalSpacing - avatar.width - roomName.width
         }
 
-        Item { Layout.fillWidth: true }
+        HSpacer {}
     }
 }

harmonyqml/components/Pages/RememberAccount.qml

@@ -39,6 +39,6 @@ Item {
             Layout.maximumWidth: rememberBox.width - Layout.margins * 2
         }
 
-        Item { Layout.fillHeight: true }
+        HSpacer {}
     }
 }

harmonyqml/components/SidePane/RoomDelegate.qml

@@ -68,6 +68,6 @@ MouseArea {
             }
         }
 
-        Item { Layout.fillWidth: true }
+        HSpacer {}
     }
 }