fix: mutex in wholescreencapturer

src/internal/screencapturer/wholescreencapturer.go

@@ -64,13 +64,13 @@ type wholeScreenCapturer struct {
 func (w *wholeScreenCapturer) Get() (filepath string, err error) {
 	w.mu.RLock()
 	defer w.mu.Unlock()
-	if !w.initialized {
-		return "", ErrNotInitialized
-	}
-	if w.latest == "" {
-		return "", errors.New("no screenshot captured yet")
-	}
-	return w.latest, nil
+    if !w.initialized {
+        return "", ErrNotInitialized
+    }
+    if w.latest == "" {
+        return "", errors.New("no screenshot captured yet")
+    }
+    return w.latest, nil
 }
 
 // Init implements ScreenCapturer.

src/utils/platform.go

@@ -1,20 +0,0 @@
-// Copyright (c) 2025 Nikolai Papin
-//
-// This file is part of the Auto Attendance app that looks for
-// self-attend QR-codes during lectures and opens their URLs in your
-// browser.
-//
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
-// the GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program.  If not, see <https://www.gnu.org/licenses/>.
-
-package platform