Add Fav Activity Tests to Dashboard

[craigyu]

Add the following tests to smoke-test/dashboard-page.cy.ts

1. Favourite Seedlots page should add the related card to dashboard
2. Favourite Create A Class Seedlot page should add the related card to dashboard
3. Favourite My Seedlots page should add the related card to dashboard
4. On Dashboard, clicking on the Seedlots card should navigate to the Seedlots page
5. On Dashboard, clicking on the Create A Class Seedlot card should navigate to the Create A Class Seedlot page
6. On Dashboard, clicking on the My Seedlots card should navigate to the My Seedlots page
7. Click on more actions of the Seedlots card then select Highlight shortcut should highlight the Seedlots card
8. Click on more actions of the Create A Class Seedlot card then select Highlight shortcut should
   a. Dehighlight the Seedlots card that was previously highlighted
   b. Highlight the Create A Class Seedlot card
9. Delete the Seedlots card should remove the card from dashboard
10. Delete the Create A Class Seedlot card should remove the card from dashboard
11. Delete the My Seedlots card should remove the card from dashboard
    a. AND the text You don't have any favourites to show yet! should be visisble

Note:

• Avoid the usage of magic numbers when possible.
• Use element id instead of class to select an element when possible, consider adding id to elements if needed
• Complicated tests should be well commented as such so it's easier to read
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[craigyu]

@ArthurEncr Please create a branch from this issue so it's properly linked. Note that each branch should start with feat/, `fix/ etc.