e2e: seed plan limits so settings plan card renders

The "displays plan info" test asserts `getByText('Feed subscriptions')`,
which only renders inside the Plan card's `{#if auth.user.limits}` block.
The fixture never seeded `limits`, so that block never rendered in e2e —
the assertion was incidentally satisfied by the PDS-sync paragraph copy
("...store your feed subscriptions on your PDS...", matched case-insensitively
as a substring). This PR reworded that copy to "feed list", removing the
substring and breaking the test.

Seed `limits` on the fixture user so the Plan card's usage rows actually
render, making the test verify what it claims to.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: disnet

e2e/fixtures.ts

@@ -41,6 +41,12 @@ export const test = base.extend<TestFixtures>({
               did,
               handle,
               displayName: 'Test User',
+              // Seed plan limits so the settings "Plan" card renders its
+              // subscription/save usage rows (gated on `auth.user.limits`).
+              limits: {
+                maxSubscriptions: 100,
+                maxUrlSavesPerMonth: 100,
+              },
             },
           })
         );