Account · Billing and team: a meter's name gives way, a month past 12 says so

A Meter's name takes the free width and ends in an ellipsis while its
count stays whole, so a long quota name keeps "9 of 12 seats" inside a
280px box. `expiry` says why it refuses a date, and Expires reads
"There is no month 13." apart from "This date has passed.". Tests now
cover an American Express card's fifteen digits and four-digit code,
the address emptying once an invitation goes, a quota past its limit,
and a prompt with benefits standing as a paywall and one without as a
line.

src/account/upgrade.rs

@@ -1,8 +1,8 @@
 use std::rc::Rc;
 
 use gpui::{
-    App, ElementId, FontWeight, IntoElement, ParentElement, RenderOnce, SharedString, Styled,
-    Window, div,
+    App, ElementId, FontWeight, InteractiveElement, IntoElement, ParentElement, RenderOnce,
+    SharedString, Styled, Window, div,
 };
 
 use super::login::Run;
@@ -121,7 +121,14 @@ impl RenderOnce for UpgradePrompt {
                         )
                         .child(words),
                 )
-                .child(div().flex().flex_col().gap_1p5().children(benefits))
+                .child(
+                    div()
+                        .debug_selector(|| "paywall-benefits".into())
+                        .flex()
+                        .flex_col()
+                        .gap_1p5()
+                        .children(benefits),
+                )
                 .child(actions),
             false => div()
                 .flex()