Reset text containers on language change

Fix text containers rendering broken text after the language is changed, as this cleared the glyph atlas without clearing the references to the glyph positions in the text containers. Now `OnWindowResize` is also called on language change to reset all text containers.

However, the glyph atlas is not cleared on normal window resize anymore, because this seems to be unnecessary.

src/engine/client/text.cpp

@@ -2341,8 +2341,6 @@ class CTextRender : public IEngineTextRender
  }
 
  dbg_assert(!HasNonEmptyTextContainer, "text container was not empty");
-
- m_pGlyphMap->Clear();
  }
 };
 

src/game/client/gameclient.cpp

@@ -990,7 +990,8 @@ void CGameClient::HandleLanguageChanged()
  g_Localization.Load(g_Config.m_ClLanguagefile, Storage(), Console());
  TextRender()->SetFontLanguageVariant(g_Config.m_ClLanguagefile);
 
- UI()->OnLanguageChange();
+ // Clear all text containers
+ OnWindowResize();
 }
 
 void CGameClient::RenderShutdownMessage()

src/game/client/ui.cpp

@@ -174,11 +174,6 @@ void CUI::OnWindowResize()
  OnElementsReset();
 }
 
-void CUI::OnLanguageChange()
-{
- OnElementsReset();
-}
-
 void CUI::OnCursorMove(float X, float Y)
 {
  if(!CheckMouseLock())

src/game/client/ui.h

@@ -390,7 +390,6 @@ class CUI
  void AddUIElement(CUIElement *pElement);
  void OnElementsReset();
  void OnWindowResize();
- void OnLanguageChange();
  void OnCursorMove(float X, float Y);
 
  void SetEnabled(bool Enabled) { m_Enabled = Enabled; }