fix(color): touch events may not work correctly in the SD file browser (#5658)

radio/src/gui/colorlcd/libui/file_browser.cpp

@@ -269,6 +269,7 @@ void FileBrowser::onSelected(const char* name, bool is_dir)
 {
   if (is_dir) {
     if (fileSelected) fileSelected(nullptr, nullptr, nullptr, is_dir);
+    selected = nullptr;
     return;
   }
 
@@ -285,6 +286,7 @@ void FileBrowser::onPress(const char* name, bool is_dir)
   if (is_dir) {
     f_chdir(fullpath);
     if (fileSelected) fileSelected(nullptr, nullptr, nullptr, is_dir);
+    selected = nullptr;
     refresh();
     return;
   }

radio/src/gui/colorlcd/libui/file_browser.h

@@ -46,6 +46,7 @@ class FileBrowser : public TableField
   void onSelected(uint16_t row, uint16_t col) override;
   void onPress(uint16_t row, uint16_t col) override;
   bool onPressLong(uint16_t row, uint16_t col) override;
+  bool onLongPress() override { return false; }
 
  protected:
   void onSelected(const char* name, bool is_dir);