Improve alignment of infobar, set buffer name in window title

src/platform/render_opengl.cpp

@@ -346,10 +346,6 @@ void DrawCircle(Vec2 pos, float radius, Color color) {
     }
 }
 
-Vec2 GetStringSize(Font *font, String16 string) {
-    return DrawString(font, string, {}, {}, false);
-}
-
 Int GetCharSpacing(Font *font, int codepoint = '_') {
     Glyph *g = GetGlyph(font, codepoint);
     if (g->xadvance) return (Int)g->xadvance;