Refactor API documentation (#33217)

* Upgrade Sphinx to 2.4.4

* Refactor API documentation

* Remove left-over

* Remove Markdown from docstring

* Update titels

docs/source/api/components.rst

@@ -0,0 +1,170 @@
+:mod:`homeassistant.components`
+===============================
+
+air\_quality
+--------------------------------------------
+
+.. automodule:: homeassistant.components.air_quality
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
+alarm\_control\_panel
+--------------------------------------------
+
+.. automodule:: homeassistant.components.alarm_control_panel
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
+binary\_sensor
+--------------------------------------------
+
+.. automodule:: homeassistant.components.binary_sensor
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
+camera
+---------------------------
+
+.. automodule:: homeassistant.components.camera
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
+calendar
+---------------------------
+
+.. automodule:: homeassistant.components.calendar
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
+climate
+---------------------------
+
+.. automodule:: homeassistant.components.climate
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
+conversation
+---------------------------
+
+.. automodule:: homeassistant.components.conversation
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
+cover
+---------------------------
+
+.. automodule:: homeassistant.components.cover
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
+device\_tracker
+---------------------------
+
+.. automodule:: homeassistant.components.device_tracker
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
+fan
+---------------------------
+
+.. automodule:: homeassistant.components.fan
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
+light
+---------------------------
+
+.. automodule:: homeassistant.components.light
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
+lock
+---------------------------
+
+.. automodule:: homeassistant.components.lock
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
+media\_player
+---------------------------
+
+.. automodule:: homeassistant.components.media_player
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
+notify
+---------------------------
+
+.. automodule:: homeassistant.components.notify
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
+remote
+---------------------------
+
+.. automodule:: homeassistant.components.remote
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
+switch
+---------------------------
+
+.. automodule:: homeassistant.components.switch
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
+sensor
+-------------------------------------
+
+.. automodule:: homeassistant.components.sensor
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
+vacuum
+-------------------------------------
+
+.. automodule:: homeassistant.components.vacuum
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
+water\_heater
+-------------------------------------
+
+.. automodule:: homeassistant.components.water_heater
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
+weather
+---------------------------
+
+.. automodule:: homeassistant.components.weather
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
+webhook
+---------------------------
+
+.. automodule:: homeassistant.components.webhook
+    :members:
+    :undoc-members:
+    :show-inheritance: