windows: when running from source, load DLLs from main dir

Load DLLs from inner 'electrum' dir instead of '.dlls'.
To make it consistent with where we expect libsecp256k1 (.dll/.so) be.
(note that while in case of libsecp we specifically already search the main dir,
without this change, other DLLs such as libusb or libzbar would not be found there)

.gitignore

@@ -16,7 +16,6 @@ bin/
 .idea
 .mypy_cache
 .vscode
-.dlls
 
 # icons
 electrum/gui/kivy/theming/light-0.png

run_electrum

@@ -51,12 +51,11 @@ os.environ['KIVY_DATA_DIR'] = os.path.abspath(os.path.dirname(__file__)) + '/ele
 if is_local or is_android:
     sys.path.insert(0, os.path.join(script_dir, 'packages'))
 
-# when running from source, on Windows, also search for DLLs in '.dlls' top-level folder
+# when running from source, on Windows, also search for DLLs in inner 'electrum' folder
 if is_local and os.name == 'nt':
-    dll_dir = os.path.join(os.path.dirname(__file__), '.dlls')
-    if os.path.exists(dll_dir):
-        if hasattr(os, 'add_dll_directory'):  # requires python 3.8+
-            os.add_dll_directory(dll_dir)
+    dll_dir = os.path.join(os.path.dirname(__file__), 'electrum')
+    if hasattr(os, 'add_dll_directory'):  # requires python 3.8+
+        os.add_dll_directory(dll_dir)
 
 
 def check_imports():