feat: Update points equations and details in Rewards ways to earn section cp-7.59.0 (#22457)

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## **Description**

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This aligns the Swaps points equation to be anchored more similarly to
the perps amount, fixes the perps description to be more consistent and
convey how fee discounts affect perps points, and better clarifies how
the loyalty bonus works.

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CHANGELOG entry: Updated Rewards "ways to earn" descriptions to be more
accurate.

## **Related issues**

Fixes: n/a

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<!-- CURSOR_SUMMARY -->
---

> [!NOTE]
> Updates Rewards “Ways to earn” text: swaps to 8 points per $10, adds
perps fee-discount note, changes referrals to 10 points per 50, and
clarifies loyalty bonus description.
> 
> - **Rewards > `ways_to_earn` (i18n copy updates)**:
>   - **`swap`**:
> - `description`/`sheet.points`: `80 points per $100` → `8 points per
$10`.
>   - **`perps`**:
> - `sheet.description`: add note that fee discounts also discount
points.
>   - **`referrals`**:
>     - `sheet.points`: `20 points per 100` → `10 points per 50`.
>   - **`loyalty`**:
> - `sheet.description`: clarify wording to “past MetaMask in-wallet
swaps or bridges.”
> 
> <sup>Written by [Cursor
Bugbot](https://cursor.com/dashboard?tab=bugbot) for commit
c97f27e. This will update automatically
on new commits. Configure
[here](https://cursor.com/dashboard?tab=bugbot).</sup>
<!-- /CURSOR_SUMMARY -->

Author: Montoya

locales/languages/en.json

@@ -6669,10 +6669,10 @@
       "supported_networks": "Supported Networks",
       "swap": {
         "title": "Swap",
-        "description": "80 points per $100",
+        "description": "8 points per $10",
         "sheet": {
           "title": "Swap tokens",
-          "points": "80 points per $100",
+          "points": "8 points per $10",
           "description": "Swap tokens on supported networks to earn points for every dollar you trade.",
           "cta_label": "Start a swap"
         }
@@ -6683,7 +6683,7 @@
         "sheet": {
           "title": "Trade perps",
           "points": "10 points per $100 order value",
-          "description": "Earn points on every trade, including opens and closes, stop loss and take profit orders, and margin adjustments. Order value is based on the size with leverage.",
+          "description": "Earn points on every trade, including opens and closes, stop loss and take profit orders, and margin adjustments. Order value is based on the size with leverage. If you have a fee discount, points will be discounted too.",
           "cta_label": "Start a trade"
         }
       },
@@ -6692,7 +6692,7 @@
         "description": "10 points per 50 from friends",
         "sheet": {
           "title": "Refer a friend",
-          "points": "20 points per 100",
+          "points": "10 points per 50",
           "cta_label": "Refer a friend"
         }
       },
@@ -6702,7 +6702,7 @@
         "sheet": {
           "title": "Loyalty bonus",
           "points": "250 points per $1250",
-          "description": "Add accounts with past swaps or bridges in MetaMask to earn loyalty bonuses. Each eligible account unlocks points in increments of 250, up to a total of 50,000. Bonuses appear shortly after you add an account.",
+          "description": "Add accounts with past MetaMask in-wallet swaps or bridges to earn loyalty bonuses. Each eligible account unlocks points in increments of 250, up to a total of 50,000. Bonuses appear shortly after you add an account.",
           "cta_label": "Add accounts"
         }
       },