fix: button debt

src/assets/stylesheets/App.scss

@@ -1,7 +1,7 @@
-@use './rpf_design_system/font-size' as *;
-@use './rpf_design_system/colours' as *;
+@use "./rpf_design_system/font-size" as *;
+@use "./rpf_design_system/colours" as *;
 
-@use './Tabs' as *;
+@use "./Tabs" as *;
 
 a {
   border: 3px solid transparent;
@@ -12,14 +12,6 @@ a {
   }
 }
 
-button {
-  all: initial;
-  border: 3px solid transparent;
-  cursor: pointer;
-
-  @extend a;
-}
-
 input {
   font-family: var(--wc-font-family-sans-serif);
 }
@@ -30,7 +22,6 @@ input {
   caret-color: $rpf-black;
   color-scheme: light;
 
-
   .pythonrunner-input {
     color: rgb(36, 103, 236);
   }