fix: fix panic deleting file sync session via right click (#202)

Also configures the linter to pick up on unused arguments, and configures the formatter to not format them out (by setting them to _). If this was the case prior, this bug wouldn't have happened.

Author: ethanndickson

Coder-Desktop/.swiftformat

@@ -1,3 +1,4 @@
 --selfrequired log,info,error,debug,critical,fault
 --exclude **.pb.swift,**.grpc.swift
---condassignment always
+--condassignment always
+--disable unusedArguments

Coder-Desktop/.swiftlint.yml

@@ -3,6 +3,8 @@ disabled_rules:
   - trailing_comma
   - blanket_disable_command # Used by Protobuf
   - opening_brace # Handled by SwiftFormat
+opt_in_rules:
+  - unused_parameter
 type_name:
   allowed_symbols: "_"
 identifier_name:

Coder-Desktop/Coder-Desktop/Views/FileSync/FileSyncConfig.swift

@@ -165,11 +165,11 @@ struct FileSyncConfig<VPN: VPNService, FS: FileSyncDaemon>: View {
     }
 
     // TODO: Support selecting & deleting multiple sessions at once
-    func delete(session _: FileSyncSession) async {
+    func delete(session: FileSyncSession) async {
         loading = true
         defer { loading = false }
         do throws(DaemonError) {
-            try await fileSync.deleteSessions(ids: [selection!])
+            try await fileSync.deleteSessions(ids: [session.id])
         } catch {
             actionError = error
         }