Remove mushroom as dependency (#409)

.github/ISSUE_TEMPLATE/feature.yaml

@@ -7,8 +7,6 @@ body:
  attributes:
  label: Requirements
  options:
- - label: I have updated Mushroom to the latest available version
- required: true
  - label: I did a search to see if there is a similar issue or if a pull request is open.
  required: true
  - type: textarea

.hass_dev/configuration.yaml

@@ -6,7 +6,6 @@ default_config:
 frontend:
  themes: !include_dir_merge_named themes
  extra_module_url:
- - /local/mushroom.js
  - http://localhost:5200/trashcard.js
 
 automation: !include automations.yaml

README.md

@@ -29,7 +29,6 @@ It uses events contained within the local calendar integration to display the in
 ## Pre-Requirements
 
 TrashCard requires:
-- [Mushroom][mushroom-url] for Home Assistant.
 - The [Home Assistant calendar integration](https://www.home-assistant.io/integrations/#calendar).
 
 Once you have both of these installed, you can install TashCard either:
@@ -219,10 +218,6 @@ pattern:
 ### Using pictures instead of icons
 <img width="1032" alt="with-image" src="https://github.com/idaho/hassio-trash-card/assets/664101/212537e0-65d3-4c2c-a25c-9431d7ff04b9">
 
-## Thanks
-
-Thanks go to the team at [Mushroom][mushroom-url] for creating many beautiful cards.
-
 
 
 <!-- Badges -->
@@ -241,7 +236,6 @@ Thanks go to the team at [Mushroom][mushroom-url] for creating many beautiful ca
 
 
 <!-- References -->
-[mushroom-url]: https://github.com/piitaya/lovelace-mushroom
 [home-assistant]: https://www.home-assistant.io/
 [home-assitant-theme-docs]: https://www.home-assistant.io/integrations/frontend/#defining-themes
 [hacs]: https://hacs.xyz