Merge bitcoin-core/gui#176: Fix TxViewDelegate layout

af58f5b12c qt: Stop the effect of hidden widgets on the size of QStackedWidget (Hennadii Stepanov)
f0d04795e2 qt: Fix TxViewDelegate layout (Hennadii Stepanov)
d439921406 qt: Add TransactionOverviewWidget class (Hennadii Stepanov)

Pull request description:

  This change:
  - prevents overlapping date and amount strings
  - guaranties that "eye" sign at the end of the watch-only address/label is always visible

  Fix https://github.com/bitcoin/bitcoin/issues/20826

  Here are some screenshots with this PR with the _minimum available width_ of the transaction list widget:

  ![Screenshot from 2021-01-03 20-23-56](https://user-images.githubusercontent.com/32963518/103486411-6408ca00-4e06-11eb-9c21-627a65e532c1.png)
  ![Screenshot from 2021-01-03 20-24-47](https://user-images.githubusercontent.com/32963518/103486413-6834e780-4e06-11eb-8221-478d98bbdf69.png)
  ![Screenshot from 2021-01-03 20-25-27](https://user-images.githubusercontent.com/32963518/103486418-6d923200-4e06-11eb-8625-a4ed3089b6ab.png)
  ![Screenshot from 2021-01-03 20-33-20](https://user-images.githubusercontent.com/32963518/103486420-708d2280-4e06-11eb-90c2-f2463fb3c4b3.png)

ACKs for top commit:
  dooglus:
    ACK af58f5b.
  jarolrod:
    re-ACK af58f5b12c

Tree-SHA512: 6dae682490ec50fa0335d220bc2d153fa3e6ed578f07c6353a3b180f8f6cf1c2f9e52ebd7b3076f51d7004d86bf5cca14e6b5db9cdf786e85a57a81eacbb4988

src/qt/forms/overviewpage.ui

@@ -504,7 +504,7 @@
            </layout>
           </item>
           <item>
-           <widget class="QListView" name="listTransactions">
+           <widget class="TransactionOverviewWidget" name="listTransactions">
             <property name="styleSheet">
              <string notr="true">QListView { background: transparent; }</string>
             </property>
@@ -517,9 +517,15 @@
             <property name="horizontalScrollBarPolicy">
              <enum>Qt::ScrollBarAlwaysOff</enum>
             </property>
+            <property name="sizeAdjustPolicy">
+             <enum>QAbstractScrollArea::AdjustToContents</enum>
+            </property>
             <property name="selectionMode">
              <enum>QAbstractItemView::NoSelection</enum>
             </property>
+            <property name="uniformItemSizes">
+             <bool>true</bool>
+            </property>
            </widget>
           </item>
          </layout>
@@ -544,6 +550,13 @@
    </item>
   </layout>
  </widget>
+ <customwidgets>
+  <customwidget>
+   <class>TransactionOverviewWidget</class>
+   <extends>QListView</extends>
+   <header>qt/transactionoverviewwidget.h</header>
+  </customwidget>
+ </customwidgets>
  <resources/>
  <connections/>
 </ui>