Update Environment Canada integration alerts

[SapphirusBeryl]

Fixes #301

[nickvin]

Any reason why this isn't getting merged?
The card hasn't been functional for Environment Canada users for a while now.
Would be great to get this fix...

[SapphirusBeryl]

Any reason why this isn't getting merged? The card hasn't been functional for Environment Canada users for a while now. Would be great to get this fix...

I'd respectfully ask to have some patience and not bug the maintainer.

Note: It's possible to build and install MeteoalarmCard manually with these patches if you are unable to wait:

Instructions for the uninitiated

Expectation is you are at least able to make basic use of a Linux CLI. Beyond this, I cannot provide any assistance, as it falls outside the scope of this PR.

The instructions are as follows:

1. Run $ git clone https://github.com/SapphirusBeryl/MeteoalarmCard/ && cd MeteoalarmCard && git switch update/environment-canada-integration
2. Then $ npm install && npm run build
3. Move dist/meteoalarm-card.js to www/custom/ in your HomeAssistant configuration directory
4. Navigate on your HomeAssistant instance to https://home-assistant/config/lovelace/resources
5. Then add a custom resource with the URL /local/custom/meteoalarm-card.js and ensure the Resource type is set to JavaScript module
6. Clear your browser's cache and reload the frontend