gui: restore the font size of lyric window when app is restarted (#873)

.pylintrc

@@ -1,5 +1,7 @@
 [MASTER]
 disable=
+    unknown-option-value,  # some options are only valid in latest pylint
+
     missing-docstring,
     too-few-public-methods,
     no-name-in-module,  # seems not working for PyQt5

feeluown/gui/uimain/lyric.py

@@ -303,16 +303,14 @@ def on_lyrics_changed(self, lyric, *_):
             self.set_line(LyricLine('未找到可用歌词', '', False))
 
     def zoomin(self):
-        label = self.line_label
-        font = label.font()
+        font = self.font()
         resize_font(font, +1)
-        label.setFont(font)
+        self.setFont(font)
 
     def zoomout(self):
-        label = self.line_label
-        font = label.font()
+        font = self.font()
         resize_font(font, - 1)
-        label.setFont(font)
+        self.setFont(font)
 
     def on_font_size_changed(self):
         self._border_radius = self.fontMetrics().height() // 3

feeluown/plugin.py

@@ -32,6 +32,7 @@ class Plugin:
     `enable(app)` and `disable(app)` function. It can also implements
     `init_config(config)` and initialize its configurations.
     """
+    # pylint: disable=too-many-positional-arguments
     def __init__(self, module, alias='', version='', desc='',
                  author='', homepage='', dist_name=''):
         """插件对象

feeluown/server/data_structure.py

@@ -10,7 +10,7 @@ class SessionOptions:
 
 class Request:
     """fuo 协议请求对象"""
-    # pylint: disable=too-many-arguments
+    # pylint: disable=too-many-arguments,too-many-positional-arguments
     # FIXME: maybe add a property 'stdin_content' for Request.
     def __init__(self, cmd, cmd_args=None,
                  cmd_options=None, options=None,