[RulesDashboard] - Add Ruleset Modal

[cielbellerose]

Description

We need to create a modal to add a new ruleset to the rules dashboard by inputting its name - for example "FSAE". This ticket is only for the front end, it will not yet be functional

The modal will later be opened via the 'Add Ruleset' button on the main Rules page. Take a look at the AssemblyForm files in the ProjectDetailPage BOM for inspo. Also, ensure to add the "Cancel" and "Add Ruleset" buttons at the bottom

Acceptance Criteria

• modal for adding a ruleset is created
• Modal follows structure outlined in the Mock
• "Add Ruleset" button is added but is not yet functional
• "Cancel" button is added and successfully closes the form

Proposed Solution

Look at how other modals are made and follow similar processes. We do not yet need any hooks or api calls to connect this to the backend, this will be done in a later ticket

Mocks