Rewrite tx list with innerHTML, fix scrollbar overlay and overflow

- Rebuilt tx list rendering using innerHTML instead of createElement
- scrollbar-gutter: stable on body to prevent content shift
- max-width:42ch instead of width:42ch to prevent horizontal overflow
- overflow-x:hidden on body and #app

src/popup/views/home.js

@@ -40,7 +40,7 @@ function render(ctx) {
             }
             const addrUsd = formatUsd(getAddressValueUsd(addr));
             html += `<div class="flex text-xs">`;
-            html += `<span style="width:42ch">${addr.address}</span>`;
+            html += `<span style="max-width:42ch">${addr.address}</span>`;
             html += `<span class="text-right text-muted flex-1">${addrUsd}</span>`;
             html += `</div>`;
             html += balanceLinesForAddress(addr);