refactor: Un-singletonize Paths & Updates (#5092)

src/singletons/Paths.cpp

@@ -15,12 +15,8 @@ using namespace std::literals;
 
 namespace chatterino {
 
-Paths *Paths::instance = nullptr;
-
 Paths::Paths()
 {
-    this->instance = this;
-
     this->initAppFilePathHash();
 
     this->initCheckPortable();
@@ -33,12 +29,12 @@ bool Paths::createFolder(const QString &folderPath)
     return QDir().mkpath(folderPath);
 }
 
-bool Paths::isPortable()
+bool Paths::isPortable() const
 {
     return Modes::instance().isPortable;
 }
 
-QString Paths::cacheDirectory()
+QString Paths::cacheDirectory() const
 {
     static const auto pathSetting = [] {
         QStringSetting cachePathSetting("/cache/path");
@@ -146,9 +142,4 @@ void Paths::initSubDirectories()
     this->crashdumpDirectory = makePath("Crashes");
 }
 
-Paths *getPaths()
-{
-    return Paths::instance;
-}
-
 }  // namespace chatterino