replace some Spacer with spacing

Author: eagleoflqj

src/config/about.swift

@@ -65,7 +65,7 @@ struct AboutView: View {
   @State private var latestAvailable = false
 
   var body: some View {
-    VStack {
+    VStack(spacing: gapSize) {
       if let iconURL = Bundle.main.url(forResource: "fcitx", withExtension: "icns"),
         let icon = NSImage(contentsOf: iconURL)
       {
@@ -76,45 +76,37 @@ struct AboutView: View {
       Text(String("Fcitx5 macOS"))  // no i18n by design
         .font(.title)
 
-      Spacer().frame(height: gapSize)
-
       HStack {
         Text(arch)
         if isDebug {
           Text("Debug")
         }
       }
 
-      Spacer().frame(height: gapSize)
       if releaseTag == "latest" {
         urlButton(String(commit.prefix(7)), sourceRepo + "/commit/" + commit)
       } else {
         urlButton(releaseTag, sourceRepo + "/tree/" + releaseTag)
       }
 
-      Spacer().frame(height: gapSize)
       Text(getDate())
 
-      Spacer().frame(height: gapSize)
       HStack {
         Text("Originally made by")
         urlButton("Qijia Liu", "https://github.com/eagleoflqj")
         Text("and")
         urlButton("ksqsf", "https://github.com/ksqsf")
       }
 
-      Spacer().frame(height: gapSize)
       HStack {
         Text("Licensed under")
         urlButton("GPLv3", sourceRepo + "/blob/master/LICENSE")
       }
 
-      Spacer().frame(height: gapSize)
       urlButton(
         NSLocalizedString("3rd-party source code", comment: ""),
         sourceRepo + "/blob/master/README.md#credits")
 
-      Spacer().frame(height: gapSize)
       HStack {
         Button {
           if viewModel.state == .notChecked {

src/config/datamanager.swift

@@ -149,7 +149,7 @@ struct DataView: View {
   }
 
   var body: some View {
-    VStack {
+    VStack(spacing: gapSize) {
       Text("Import data from …")
 
       Button {
@@ -202,8 +202,6 @@ struct DataView: View {
         ImportDataView().load(hamsterItems)
       }
 
-      Spacer().frame(height: gapSize)
-
       Text("Export data to …")
 
       Button {

src/config/importtable.swift

@@ -45,7 +45,7 @@ struct ImportTableView: View {
   }
 
   var body: some View {
-    VStack {
+    VStack(spacing: gapSize) {
       Button {
         NSWorkspace.shared.open(imLocalDir)
       } label: {
@@ -57,8 +57,6 @@ struct ImportTableView: View {
         Text("Copy \\*.dict/\\*.txt to this directory")
       }
 
-      Spacer().frame(height: gapSize)
-
       HStack {
         Button {
           presentationMode.wrappedValue.dismiss()