223 dev action confirmation modal

[josieek]

Closes #223

The following fields are passed into the ActionConfirmation modal:

1. isOpen - boolean if this should be visible or not
2. title - the bold text at the very top (Ex: "Delete Grant")
3. subtitle and boldSubtitle - The text on the next line and the text that should be bolded (Ex: "Are you sure you want to delete" and "{grantText}")
4. warningMessage - the text in the orange warning box (Ex: "By deleting this grant, they won't be available in the system anymore")
5. onCloseDelete function - called when user clicks "No, cancel"
6. onConfirmDelete function - called when user clicks "Yes, confirm"

For an example of using this component, see GrantItem.tsx.

I included a comment explaning this in the code as well.

This PR also includes connecting deleting grants to backend which is why so many files are changed. I will elaborate on and fine tune that functionality further in my next ticket once I finish refreshing after editing a grant.

[janekamata]

Looks fine to me. Ran locally and delete works. Looks good at different window sizes too