Fix button positioning

src/popover.ts

@@ -503,7 +503,7 @@ function createPopover(): PopoverDOM {
   closeButton.innerText = "Close";
 
   const footerButtons = document.createElement("span");
-  footerButtons.classList.add("driver-popover-footer-btns");
+  footerButtons.classList.add("driver-popover-navigation-btns");
 
   const previousButton = document.createElement("button");
   previousButton.classList.add("driver-popover-prev-btn");

src/style.css

@@ -97,7 +97,13 @@
   border-radius: 3px;
 }
 
-.driver-popover-footer-btns button + button {
+.driver-popover-navigation-btns {
+  display: flex;
+  flex-grow: 1;
+  justify-content: flex-end;
+}
+
+.driver-popover-navigation-btns button + button {
   margin-left: 4px;
 }