Standardize spacings

src/qml/Base/HLabeledTextField.qml

@@ -5,7 +5,7 @@ import QtQuick 2.12
 import QtQuick.Controls 2.12
 
 Column {
-    spacing: 4
+    spacing: theme.spacing / 2
 
     property alias label: fieldLabel
     property alias field: textField

src/qml/Base/HNoticePage.qml

@@ -17,11 +17,11 @@ HRowLayout {
         id: noticeLabel
         horizontalAlignment: Text.AlignHCenter
         wrapMode: Text.Wrap
-        padding: 3
-        leftPadding: 10
-        rightPadding: 10
+        padding: theme.spacing / 2
+        leftPadding: theme.spacing
+        rightPadding: leftPadding
 
-        Layout.margins: 10
+        Layout.margins: theme.spacing
         Layout.alignment: Qt.AlignCenter
         Layout.maximumWidth:
             parent.width - Layout.leftMargin - Layout.rightMargin

src/qml/Base/HUIButton.qml

@@ -30,7 +30,7 @@ HBaseButton {
 
         HRowLayout {
             id: contentLayout
-            spacing: button.text && iconName ? 8 : 0
+            spacing: button.text && iconName ? theme.spacing : 0
             Component.onCompleted: contentWidth = implicitWidth
 
             HIcon {