Tweak wizard page descriptions from review suggestions

Co-authored-by: RoboticMind <30132912+RoboticMind@users.noreply.github.com>

src/qt/forms/overviewpage.ui

@@ -551,7 +551,7 @@
                <item alignment="Qt::AlignLeft|Qt::AlignVCenter">
                 <widget class="QLabel" name="researcherAlertLabel">
                  <property name="text">
-                  <string notr="true">Action needed</string>
+                  <string notr="true">Action Needed</string>
                  </property>
                  <property name="alignment">
                   <set>Qt::AlignLeading|Qt::AlignLeft|Qt::AlignVCenter</set>

src/qt/forms/researcherwizardbeaconpage.ui

@@ -23,7 +23,7 @@
    <string>Beacon Advertisement</string>
   </property>
   <property name="subTitle">
-   <string>A beacon is a special type of Gridcoin transaction that links a BOINC CPID to your wallet. After sending a beacon, the network tracks your BOINC statistics to calculate research rewards.</string>
+   <string>A beacon links your BOINC accounts to your wallet. After sending a beacon, the network tracks your BOINC statistics to calculate research rewards.</string>
   </property>
   <layout class="QVBoxLayout" name="beaconPageLayout">
    <item>

src/qt/forms/researcherwizardemailpage.ui

@@ -23,7 +23,7 @@
    <string>BOINC Email Address</string>
   </property>
   <property name="subTitle">
-   <string>Confirm the email address that you provided to register the accounts for BOINC projects that you participate in. Gridcoin uses the email address to detect BOINC projects on your computer.</string>
+   <string>Enter the email address that you use for your BOINC project accounts. Gridcoin uses this email address to find BOINC projects on your computer.</string>
   </property>
   <layout class="QVBoxLayout" name="verticalLayout">
    <item>