docs: Drop openmv-media submodule references.

Switch html_logo and html_favicon to local copies under docs/static/
instead of the openmv-media submodule. The favicon was copied directly
from openmv-media/icons/openmv-icon/openmv.ico; the dark logo was
already in static/ for the Shibuya light_logo/dark_logo theme options.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: kwagyeman

docs/conf.py

@@ -447,12 +447,12 @@ def _render_landing_code(src):
 
 # The name of an image file (relative to this directory) to place at the top
 # of the sidebar.
-html_logo = "../../openmv-media/logos/openmv-logo-white/web-logo-sticky.png"
+html_logo = "static/openmv-logo-dark.png"
 
 # The name of an image file (within the static path) to use as favicon of the
 # docs.  This file should be a Windows icon file (.ico) being 16x16 or 32x32
 # pixels large.
-html_favicon = "../../openmv-media/icons/openmv-icon/openmv.ico"
+html_favicon = "static/openmv.ico"
 
 # Add any paths that contain custom static files (such as style sheets) here,
 # relative to this directory. They are copied after the builtin static files,