Refactor Rageshake URL and Target configuration. (#4337)

* Move the rageshakeURL configuration from the BugReportService to AppSettings.

* Refactor Target to return a handle when configuring.

This helps with reconfiguration and removes the @MainActor constraint.

ElementX/Sources/Services/BugReport/BugReportServiceProtocol.swift

@@ -46,13 +46,11 @@ enum BugReportServiceError: LocalizedError {
     }
 }
 
-enum RageshakeConfiguration {
+enum RageshakeConfiguration: Equatable {
     /// Rageshakes should be sent to the provided URL
     case url(URL)
     /// Rageshakes are disabled.
     case disabled
-    /// No customisations are made, use the default configuration.
-    case `default`
 }
 
 // sourcery: AutoMockable
@@ -62,8 +60,6 @@ protocol BugReportServiceProtocol: AnyObject {
     
     var lastCrashEventID: String? { get set }
     
-    func applyConfiguration(_ configuration: RageshakeConfiguration)
-    
     func submitBugReport(_ bugReport: BugReport,
                          progressListener: CurrentValueSubject<Double, Never>) async -> Result<SubmitBugReportResponse, BugReportServiceError>
 }