Feature/global car filtering

[cielbellerose]

Changes

Pages updated for filtering included: Home, Gantt, Projects, Change Requests, Finance.
Pages excluded from global filtering: Teams, Statistics, Calendar, Restrospective.

• Add global car filter in sidebar.
• Add override capabilities for specific pages to override global filter.
• Add middleware to pass in car selection.
• Add backend filtering for endpoints linked to pages that should be filtered.

Notes

Two features follow slightly different formats than the rest of the website for unique reasons.

• Gantt Chart overrides carId header to always capture all data; does front-end filtering; necessary due to local multi-car filtering.
• Finance pages take in global filter to display choice in page dropdowns; always flows choice back into the override.

Side changes that I believe were important to note.

• Moved seed data from Fergus to NER-25 to make tests simpler, since NER-25 is the most recent car.
• Fixed dropdowns to exclude guests (side change asked to be included in PR).

Compared to the ticket, some implementations are slightly different.

• Currently we default the car in the dropdown to the last globally selected car or all cars if not possible, however, the ticket indicates the default should always be the current car for the year.
• Currently the local filter on a page is preserved until the website is reloaded or until the next session, however, the ticket indicates the local filter should reset to global when the user navigates away from the page.

Screenshots

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Closes #3629

[chpy04]

Really good work, main thing is dedicated all cars handling instead of implicit with undefined. Also in terms of UI, on the selector:

Can we

• add some spacing on to of the "Working with" so its not so close to the top of the screen
• Make the car options go all the way to the right below the sidebar arrow instead of getting horizontally cut off even when there is nothing to the right of them

[chpy04]

bangggggggggggggggg