Core: Fix typos in and capitalization of UI text

Change-Id: I830539c7b8f3004b5143a02e3c1e8cea69fa1c81
Reviewed-by: Eike Ziller <eike.ziller@qt.io>

src/plugins/coreplugin/coreplugin.cpp

@@ -396,7 +396,7 @@ void CorePlugin::warnAboutCrashReporing()
             ? tr("%1 collects crash reports for the sole purpose of fixing bugs. "
                  "To disable this feature go to %2.")
             : tr("%1 can collect crash reports for the sole purpose of fixing bugs. "
-                 "to enable this feature go to %2.");
+                 "To enable this feature go to %2.");
 
     if (Utils::HostOsInfo::isMacHost()) {
         warnStr = warnStr.arg(Core::Constants::IDE_DISPLAY_NAME)

src/plugins/coreplugin/fileutils.cpp

@@ -188,7 +188,7 @@ void FileUtils::removeFiles(const FilePaths &filePaths, bool deleteFromFS)
             continue;
         if (!file.remove()) {
             MessageManager::writeDisrupting(
-                QCoreApplication::translate("Core::Internal", "Failed to remove file \"%1\")1.")
+                QCoreApplication::translate("Core::Internal", "Failed to remove file \"%1\".")
                     .arg(fp.toUserOutput()));
         }
     }

src/plugins/coreplugin/systemsettings.ui

@@ -314,7 +314,7 @@
         <item>
          <widget class="QPushButton" name="clearCrashReportsButton">
           <property name="text">
-           <string>Clear local crash reports</string>
+           <string>Clear Local Crash Reports</string>
           </property>
          </widget>
         </item>