Migrate regional explore pages

[shawnbot]

The new state (and offshore area) profile pages are going to effectively replace most of the existing explore pages and their more specific views. These are the views we're replacing. Checked boxes indicate views that have unique URLs in the new structure:

1. Federal revenue by location
   • National ➡️ /explore/#federal-revenue
   • State
   • Offshore area needs issue
2. Disbursements
   • National ➡️ /explore/#federal-disbursements
   • State view doesn't exist yet, but state disbursement data is going into the new state profile pages ➡️ [sample] /explore/CO/#disbursements
3. Production on all lands and waters
   • National ➡️ /explore/#all-production
   • State
   • Offshore area needs issue, also needs to include Alaska-Pacific region
4. Production on federal lands and waters
   • National ➡️ /explore/#federal-production
   • State
   • Offshore area needs issue
5. GDP
   • National $ ➡️ /explore/#gdp
   • National % ➡️ /explore/#gdp
   • State $
   • State %
6. Exports in units:
   • National $ We've removed exports from the national page because we only have data for top-25 exports in each state, which doesn't translate to meaningful data at the national level.
   • National %
   • State $
   • State % Percentage of exports doesn't make a ton of sense, given the limited nature of the data.
7. Jobs
   • National wage and salary # ➡️ /explore/#employment
   • National wage and salary % ➡️ /explore/#employment
   • National self-employed # ➡️ /explore/#employment
   • National self-employed % ➡️ /explore/#employment
   • State wage and salary # ➡️ [sample] /explore/WV/#employment
   • State wage and salary % ➡️ [sample] /explore/WV/#employment
   • State self-employed # ➡️ [sample] /explore/WV/#self-employment
   • State self-employed %

Expected Behavior

There may not be distinct pages for each data set in the new regional profile structure, but there should at least be sections of national and regional pages that correspond to each view above. Most of the old URLs above should redirect to the corresponding new ones. Some ideas for how to handle redirects are discussed in #1326. There should be tests in place to ensure that there are at least no 404s.

We haven't decided whether we're going to have a year slider on these pages, so we may not necessarily need to respect that URL parameter.

[coreycaitlin]

Some analytics notes, in case it's useful (and per #1326): here's the snapshot of how many unique visits we've seen on each of these pages since launch.

1. Federal revenue by location — 1,605
2. Disbursements — 312
3. Production on all lands and waters — 240
4. Production on federal lands and waters — 653
5. GDP — 88
6. Exports — 57
7. Jobs — 126
8. Federal revenue by company — 563
9. Reconciliation — 118

My hunch, based on these numbers, is that we can mostly redirect folks to anchor links on the national profile page.

Also, outreach!

[shawnbot]

Everything here is checked! 📯