Fix button highlighting in multiple dialogs

* Changed style so that only default buttons have full background highlight. This prevents confusion as to which button in various dialogs is the default/desired choice.

* Move password generator popup into static function outside of PasswordEdit so other parts of the program can easily access it.

* QDialog forces 'autoDefault' property on all buttons causing them to obtain background highlight when they are focused. Moved Password Generator outside of a QDialog and forced 'autoDefault' to false on Browser Access Dialog.

* Fixed button ordering in Totp Setup Dialog

* About dialog close button is now the default button

src/gui/PasswordGeneratorWidget.ui

@@ -7,7 +7,7 @@
     <x>0</x>
     <y>0</y>
     <width>622</width>
-    <height>404</height>
+    <height>433</height>
    </rect>
   </property>
   <property name="windowTitle">
@@ -96,7 +96,7 @@
        </property>
        <property name="minimumSize">
         <size>
-         <width>350</width>
+         <width>450</width>
          <height>0</height>
         </size>
        </property>
@@ -157,6 +157,9 @@ QProgressBar::chunk {
      </item>
      <item row="0" column="2">
       <widget class="QPushButton" name="buttonCopy">
+       <property name="focusPolicy">
+        <enum>Qt::TabFocus</enum>
+       </property>
        <property name="toolTip">
         <string>Copy password</string>
        </property>
@@ -170,6 +173,9 @@ QProgressBar::chunk {
      </item>
      <item row="0" column="1">
       <widget class="QPushButton" name="buttonGenerate">
+       <property name="focusPolicy">
+        <enum>Qt::TabFocus</enum>
+       </property>
        <property name="accessibleDescription">
         <string>Regenerate password</string>
        </property>
@@ -290,9 +296,6 @@ QProgressBar::chunk {
            <height>0</height>
           </size>
          </property>
-         <property name="focusPolicy">
-          <enum>Qt::TabFocus</enum>
-         </property>
          <property name="title">
           <string>Character Types</string>
          </property>
@@ -323,9 +326,6 @@ QProgressBar::chunk {
                  <height>25</height>
                 </size>
                </property>
-               <property name="focusPolicy">
-                <enum>Qt::TabFocus</enum>
-               </property>
                <property name="toolTip">
                 <string>Upper-case letters</string>
                </property>
@@ -1200,6 +1200,7 @@ QProgressBar::chunk {
   <tabstop>sliderLength</tabstop>
   <tabstop>spinBoxLength</tabstop>
   <tabstop>buttonAdvancedMode</tabstop>
+  <tabstop>groupBox</tabstop>
   <tabstop>checkBoxUpper</tabstop>
   <tabstop>checkBoxLower</tabstop>
   <tabstop>checkBoxNumbers</tabstop>
@@ -1215,6 +1216,11 @@ QProgressBar::chunk {
   <tabstop>checkBoxQuotes</tabstop>
   <tabstop>checkBoxDashes</tabstop>
   <tabstop>checkBoxExtASCIIAdv</tabstop>
+  <tabstop>editAdditionalChars</tabstop>
+  <tabstop>editExcludedChars</tabstop>
+  <tabstop>buttonAddHex</tabstop>
+  <tabstop>checkBoxExcludeAlike</tabstop>
+  <tabstop>checkBoxEnsureEvery</tabstop>
   <tabstop>comboBoxWordList</tabstop>
   <tabstop>sliderWordCount</tabstop>
   <tabstop>spinBoxWordCount</tabstop>