refactor: Clean up cppcheck finding causing tests to fail

src/activities/reader/XtcReaderActivity.cpp

@@ -12,13 +12,14 @@
 #include <HalStorage.h>
 #include <I18n.h>
 
+#include <algorithm>
+
 #include "CrossPointSettings.h"
 #include "CrossPointState.h"
 #include "MappedInputManager.h"
 #include "ReaderUtils.h"
 #include "RecentBooksStore.h"
 #include "XtcReaderChapterSelectionActivity.h"
-#include "components/UITheme.h"
 #include "fontIds.h"
 
 namespace {
@@ -462,24 +463,24 @@ void XtcReaderActivity::onButtonAction(const CrossPointSettings::BUTTON_ACTION a
     case BA::BTN_NEXT_SECTION:
       if (xtc->hasChapters()) {
         const auto& chapters = xtc->getChapters();
-        for (const auto& ch : chapters) {
-          if (ch.startPage > currentPage) {
-            currentPage = ch.startPage;
-            requestUpdate();
-            break;
-          }
+        const auto nextChapter = std::find_if(chapters.begin(), chapters.end(),
+                                              [this](const auto& ch) { return ch.startPage > currentPage; });
+
+        if (nextChapter != chapters.end()) {
+          currentPage = nextChapter->startPage;
+          requestUpdate();
         }
       }
       break;
     case BA::BTN_PREV_SECTION:
       if (xtc->hasChapters()) {
         const auto& chapters = xtc->getChapters();
-        for (int i = static_cast<int>(chapters.size()) - 1; i >= 0; i--) {
-          if (chapters[i].startPage < currentPage) {
-            currentPage = chapters[i].startPage;
-            requestUpdate();
-            break;
-          }
+        const auto prevChapter = std::find_if(chapters.rbegin(), chapters.rend(),
+                                              [this](const auto& ch) { return ch.startPage < currentPage; });
+
+        if (prevChapter != chapters.rend()) {
+          currentPage = prevChapter->startPage;
+          requestUpdate();
         }
       }
       break;