[audio_core, hle, video_core] force inline of functions that only contain thread loops (#3970)

traditionally, when doing jthread:

```
jthread() calls function parameter operator()() with args
function operator()() calls the code within
code within is, say { ThreadMain(); }
3 calls because why not
```

now this just makes it be 2 calls, mainly benefits non-LTO builds

Signed-off-by: lizzie <lizzie@eden-emu.dev>

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/3970
Reviewed-by: crueter <crueter@eden-emu.dev>
Reviewed-by: MaranBr <maranbr@eden-emu.dev>

src/core/hle/service/nifm/nifm.cpp

@@ -277,7 +277,17 @@ private:
         state.store(State::Processing);
         evt_processing->Signal();
 
-        worker = std::thread(&IScanRequest::WorkerThread, this);
+        worker = std::thread([this]() {
+            using namespace std::chrono_literals;
+            scan_results = Network::ScanWifiNetworks(3s);
+            {
+                std::scoped_lock lk{g_scan_mtx};
+                g_last_scan_results = scan_results;
+            }
+            // choose result code
+            const bool ok = !scan_results.empty();
+            Finish(ok ? ResultSuccess : ResultPendingConnection);
+        });
         IPC::ResponseBuilder{ctx, 2}.Push(ResultSuccess);
     }
 
@@ -308,21 +318,6 @@ private:
 
     enum class State { Idle, Processing, Finished };
 
-    void WorkerThread() {
-        using namespace std::chrono_literals;
-
-        scan_results = Network::ScanWifiNetworks(3s);
-
-        {
-            std::scoped_lock lk{g_scan_mtx};
-            g_last_scan_results = scan_results;
-        }
-
-        // choose result code
-        const bool ok = !scan_results.empty();
-        Finish(ok ? ResultSuccess : ResultPendingConnection);
-    }
-
     void Finish(Result rc) {
         worker_result.store(rc);
         state.store(State::Finished);