fix(settings): const getters

src/persistence/settings.cpp

@@ -626,7 +626,7 @@ uint32_t Settings::makeProfileId(const QString& profile)
 @brief Get path to directory, where the settings files are stored.
 @return Path to settings directory, ends with a directory separator.
 */
-QString Settings::getSettingsDirPath()
+QString Settings::getSettingsDirPath() const
 {
     QMutexLocker locker{&bigLock};
     if (makeToxPortable)
@@ -649,7 +649,7 @@ QString Settings::getSettingsDirPath()
 @brief Get path to directory, where the application data are stored.
 @return Path to application data, ends with a directory separator.
 */
-QString Settings::getAppDataDirPath()
+QString Settings::getAppDataDirPath() const
 {
     QMutexLocker locker{&bigLock};
     if (makeToxPortable)
@@ -674,7 +674,7 @@ QString Settings::getAppDataDirPath()
 @brief Get path to directory, where the application cache are stored.
 @return Path to application cache, ends with a directory separator.
 */
-QString Settings::getAppCacheDirPath()
+QString Settings::getAppCacheDirPath() const
 {
     QMutexLocker locker{&bigLock};
     if (makeToxPortable)

src/persistence/settings.h

@@ -135,9 +135,9 @@ public:
 public:
     static Settings& getInstance();
     static void destroyInstance();
-    QString getSettingsDirPath();
-    QString getAppDataDirPath();
-    QString getAppCacheDirPath();
+    QString getSettingsDirPath() const;
+    QString getAppDataDirPath() const;
+    QString getAppCacheDirPath() const;
 
     void createSettingsDir();
     void createPersonal(QString basename);