Update unified feedback form copy (#3371)

Task/Issue URL:
https://app.asana.com/0/414235014887631/1207701941801991/f
Tech Design URL:
CC:

**Description**:

Update copy as per the Ship Review.

**Steps to test this PR**:
1. CI passes

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**Definition of Done**:

* [ ] Does this PR satisfy our [Definition of
Done](https://app.asana.com/0/1202500774821704/1207634633537039/f)?

---
###### Internal references:
[Pull Request Review
Checklist](https://app.asana.com/0/1202500774821704/1203764234894239/f)
[Software Engineering
Expectations](https://app.asana.com/0/59792373528535/199064865822552)
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DuckDuckGo/Common/Localizables/UserText+NetworkProtection.swift

@@ -133,15 +133,15 @@ extension UserText {
     static let itrFeedbackFormCategorySomethingElse = "Something else"
 
     // "ppro.feedback-form.text-1" - Text for the body of the PPro feedback form
-    static let pproFeedbackFormText1 = "Found an issue not cover in our [help center](duck://)? We definitely want to know about it.\n\nTell us what's going on:"
+    static let pproFeedbackFormText1 = "Found an issue not covered in our [help center](duck://)? We definitely want to know about it.\n\nTell us what's going on:"
     // "ppro.feedback-form.text-2" - Text for the body of the PPro feedback form
-    static let pproFeedbackFormText2 = "In addition to the details entered above, we send some anonymized info with your feedback:"
+    static let pproFeedbackFormText2 = "In addition to the details entered into this form, your app issue report will contain:"
     // "ppro.feedback-form.text-3" - Bullet text for the body of the PPro feedback form
-    static let pproFeedbackFormText3 = "• Whether specific browser features are active"
+    static let pproFeedbackFormText3 = "• Whether specific DuckDuckGo features are enabled"
     // "ppro.feedback-form.text-4" - Bullet text for the body of the PPro feedback form
-    static let pproFeedbackFormText4 = "• Aggregate app diagnostics (e.g., error codes)"
+    static let pproFeedbackFormText4 = "• Aggregate DuckDuckGo app diagnostics"
     // "ppro.feedback-form.text-5" - Text for the body of the PPro feedback form
-    static let pproFeedbackFormText5 = "By clicking \"Submit\" you agree that DuckDuckGo may use information submitted to improve the app."
+    static let pproFeedbackFormText5 = "By clicking \"Submit\" I agree that DuckDuckGo may use the information in this report for purposes of improving the app's features."
     // "ppro.feedback-form.disclaimer" - Text for the disclaimer of the PPro feedback form
     static let pproFeedbackFormDisclaimer = "Reports are anonymous and sent to DuckDuckGo to help improve our service"