feat: add content for Wisconsin (#415)

Signed-off-by: David Nixon <dwnixon@gmail.com>

Author: davidnixon

app/content/elections/wi/2026-spring.yml

@@ -0,0 +1,34 @@
+ocdId: "ocd-division/country:us/state:wi"
+date: "2026-04-07"
+description: "Wisconsin Spring Election"
+type: "spring"
+website: "https://myvote.wi.gov"
+guidancePhase: "preliminary"
+
+voting:
+  inPersonVotingAvailable: true
+  mailBallotsSentAutomatically: false
+  
+  early:
+    url: "https://myvote.wi.gov/en-us/Vote-Absentee-In-Person"
+    startDate: "2026-03-24"
+    endDate: "2026-04-05"
+    varies: true
+
+  byMail:
+    idInstructions: "Photo ID and proof of residence document are required for voter registration. A valid photo ID is required to receive an absentee ballot."
+    explainerUrl: "https://myvote.wi.gov/en-us/Vote-Absentee-By-Mail"
+    deadline:
+      postmarkedOrReceived: "received"
+      date: "2026-04-07"
+      ballotRequest:
+        postmarkedOrReceived: "received"
+        date: "2026-04-05"
+        description: "Absentee ballots must be received by 8:00 PM on Election Day"
+
+  inPerson:
+    idRequiredAllVoters: true
+    idInstructions: "Photo ID is required for all voters to receive a ballot" 
+    electionDay:
+      opening: "7:00 AM"
+      closing: "8:00 PM"

app/content/procedures/Wisconsin.yml

@@ -0,0 +1,29 @@
+region_code: wi
+region: Wisconsin
+early_voting:
+  available: true
+  id_needed: true
+  more_link: https://myvote.wi.gov/en-us/Vote-Absentee-In-Person
+register:
+  formerlyIncarcerated: true
+  election_day: true
+  online: true
+  mail_link: https://elections.wi.gov/forms/el-131-fillable
+  online_link: https://myvote.wi.gov/en-us/RegisterToVote
+  change_party_link: null
+  under18: true
+  under18key: You can register to vote at 17 if you'll be 18 by Election Day.
+  felon_link: https://www.aclu-wi.org/en/votingrightscriminalconvictions
+  check_link: https://myvote.wi.gov/en-us/My-Voter-Info
+  more_link: https://elections.wi.gov/Register
+mail_in:
+  any_reason: true
+  without_notary: true
+  id_needed: true
+  id_link: https://bringit.wi.gov/
+  id_explainer: Wisconsin Now Requires a Photo ID to Vote
+  dropoff: true
+  dropoff_link: https://myvote.wi.gov/en-us/My-Voter-Info
+  request_link: https://myvote.wi.gov/en-us/Vote-Absentee-By-Mail
+  track_link: https://myvote.wi.gov/en-us/Track-My-Ballot
+  more_link: https://elections.wi.gov/voters/voting-absentee