GUI: TableSetupScrollFreeze() for log view

src/gui/log.cpp

@@ -1,5 +1,6 @@
 #include "gui.h"
 #include "../ta-log.h"
+#include <imgui.h>
 
 const char* logLevels[5]={
   "ERROR",
@@ -41,6 +42,8 @@ void FurnaceGUI::drawLog() {
       ImGui::TableSetupColumn("c1",ImGuiTableColumnFlags_WidthFixed,levelChars);
       ImGui::TableSetupColumn("c2",ImGuiTableColumnFlags_WidthStretch);
 
+      ImGui::TableSetupScrollFreeze(0,1);
+
       ImGui::TableNextRow(ImGuiTableRowFlags_Headers);
       ImGui::TableNextColumn();
       ImGui::TextUnformatted("time");