feat(ui): update assets

- Add various brand images, organise images
- Create favicon for docs pages (light blue version of key logo)
- Rename app title to `Invoke - Community Edition`

invokeai/frontend/web/src/features/system/components/InvokeAILogoComponent.tsx

@@ -2,9 +2,9 @@
 import { Image } from '@chakra-ui/react';
 import { useStore } from '@nanostores/react';
 import { $logo } from 'app/store/nanostores/logo';
-import InvokeLogoYellow from 'assets/images/invoke-key-ylw-sm.svg';
 import { InvText } from 'common/components/InvText/wrapper';
 import { InvTooltip } from 'common/components/InvTooltip/InvTooltip';
+import InvokeLogoYellow from 'public/assets/images/invoke-symbol-ylw-lrg.svg';
 import { memo, useMemo, useRef } from 'react';
 import { useGetAppVersionQuery } from 'services/api/endpoints/appInfo';