Doc: Fix QDoc warnings for the API reference

Change-Id: I3507009756822f3ac795057a37c5f34a6e2bcd10
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>
Reviewed-by: Eike Ziller <eike.ziller@qt.io>

src/libs/extensionsystem/pluginview.cpp

@@ -50,8 +50,9 @@
 */
 
 /*!
-    \fn void ExtensionSystem::PluginView::pluginSettingsChanged(ExtensionSystem::PluginSpec *spec)
-    The settings for the plugin list entry corresponding to \a spec changed.
+    \fn void ExtensionSystem::PluginView::pluginsChanged(const QSet<ExtensionSystem::PluginSpec *> &spec, bool enabled)
+    The value of \a enabled for the plugin list entry corresponding to \a spec
+    changed.
 */
 
 using namespace Utils;

src/plugins/coreplugin/find/ifindfilter.cpp

@@ -30,7 +30,7 @@ using namespace Utils;
     and \uicontrol {Files in File System} where the user provides a directory and file
     patterns to search.
 
-    \image qtcreator-search-filesystem.png
+    \image qtcreator-search-reg-exp.webp {Search Results view with search criteria}
 
     To make your find scope available to the user, you need to implement this
     class, and register an instance of your subclass in the plugin manager.
@@ -38,7 +38,7 @@ using namespace Utils;
     A common way to present the search results to the user, is to use the
     shared \uicontrol{Search Results} pane.
 
-    \image qtcreator-search-results.webp {Search Results view}
+    \image qtcreator-search-results-reg-exp.webp {Search Results view with search results}
 
     If you want to implement a find filter that is doing a file based text
     search, you should use \l Core::BaseTextFind, which already implements all
@@ -178,13 +178,13 @@ using namespace Utils;
 */
 
 /*!
-    \fn void Core::IFindFilter::writeSettings(QSettings *settings)
+    \fn void Core::IFindFilter::writeSettings(Utils::QtcSettings *settings)
     Called at shutdown to write the state of the additional options
     for this find filter to the \a settings.
 */
 
 /*!
-    \fn void Core::IFindFilter::readSettings(QSettings *settings)
+    \fn void Core::IFindFilter::readSettings(Utils::QtcSettings *settings)
     Called at startup to read the state of the additional options
     for this find filter from the \a settings.
 */

src/plugins/coreplugin/find/searchresultwindow.cpp

@@ -288,10 +288,13 @@ using namespace Core::Internal;
     This enum type specifies whether the search results should be sorted or
     ordered:
 
-    \value AddSorted
-           The search results are sorted.
+    \value AddSortedByContent
+           The search results are sorted alphabetically.
+    \value AddSortedByPosition
+           The search results are sorted by the search results' reported line
+           numbers.
     \value AddOrdered
-           The search results are ordered.
+           The search results are ordered as they are reported.
 */
 
 /*!
@@ -331,7 +334,7 @@ using namespace Core::Internal;
     \brief The SearchResultWindow class is the implementation of a commonly
     shared \uicontrol{Search Results} output pane.
 
-    \image qtcreator-search-results.webp {Search Results view}
+    \image qtcreator-search-results-reg-exp.webp {Search Results view with search results}
 
     Whenever you want to show the user a list of search results, or want
     to present UI for a global search and replace, use the single instance