docs(src): add examples alias and general cleanup (#2763)

tests/unit/test_audio.cpp

@@ -1,5 +1,5 @@
 /**
- * @file tests/test_audio.cpp
+ * @file tests/unit/test_audio.cpp
  * @brief Test src/audio.*.
  */
 #include <bitset>

tests/unit/test_file_handler.cpp

@@ -1,5 +1,5 @@
 /**
- * @file tests/test_file_handler.cpp
+ * @file tests/unit/test_file_handler.cpp
  * @brief Test src/file_handler.*.
  */
 #include <src/file_handler.h>

tests/unit/test_httpcommon.cpp

@@ -1,5 +1,5 @@
 /**
- * @file tests/test_httpcommon.cpp
+ * @file tests/unit/test_httpcommon.cpp
  * @brief Test src/httpcommon.*.
  */
 #include <src/httpcommon.h>

tests/unit/test_logging.cpp

@@ -1,5 +1,5 @@
 /**
- * @file tests/test_logging.cpp
+ * @file tests/unit/test_logging.cpp
  * @brief Test src/logging.*.
  */
 #include <fstream>

tests/unit/test_video.cpp

@@ -1,5 +1,5 @@
 /**
- * @file tests/test_video.cpp
+ * @file tests/unit/test_video.cpp
  * @brief Test src/video.*.
  */
 #include <src/video.h>