[FIX] font size on button

main/styleguide/source/_patterns/atoms/buttons/from-button-animated.mustache

 <button type="submit" class="btn btn__slide__wrap {{ classes }}">
-  <span class="btn text-lg bg-black px-1 text-white lg:text-base">
+  <span class="btn text-base bg-black px-1 text-white">
     {{ btn-text }}
   </span>
-  <span class="btn text-lg bg-white px-1 text-black lg:text-base">
+  <span class="btn text-base bg-white px-1 text-black">
     {{ btn-text }}
   </span>
 </button>

main/templates/main/includes/form_button_animated.html

 <button type="submit" class="btn btn__slide__wrap {{ extra_classes }}">
-  <span class="btn text-lg bg-black text-white px-1 lg:text-base">
+  <span class="btn text-base bg-black text-white px-1">
     {{ btn_text | default_if_none:"Číst dále" }}
   </span>
-  <span class="btn text-lg bg-white text-black px-1 lg:text-base">
+  <span class="btn text-base bg-white text-black px-1">
     {{ btn_text | default_if_none:"Číst dále" }}
   </span>
 </button>