Add interactive widget voting and fix warnings/bugs

Widget Features:
- Add inline voting to timeline widget when no entry exists for today
- Show random prompt from notification strings in voting mode
- Update vote widget to use simple icon style for selection
- Make stats bar full width in voted state view
- Add Localizable.strings to widget extension target

Bug Fixes:
- Fix inverted date calculation in InsightsViewModel streak logic
- Replace force unwraps with safe optional handling in widgets
- Replace fatalError calls with graceful error handling
- Fix CSV import safety in SettingsView

Warning Fixes:
- Add @retroactive to Color and Date extension conformances
- Update deprecated onChange(of:perform:) to new syntax
- Replace deprecated applicationIconBadgeNumber with setBadgeCount
- Replace deprecated UIApplication.shared.windows API
- Add @preconcurrency for Swift 6 protocol conformances
- Add missing widget family cases to switch statement
- Remove unused variables and #warning directives

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Shared/Persisence/DataControllerDELETE.swift

@@ -14,12 +14,12 @@ extension DataController {
             try modelContext.delete(model: MoodEntryModel.self)
             saveAndRunDataListeners()
         } catch {
-            fatalError("Failed to clear database: \(error)")
+            print("Failed to clear database: \(error)")
         }
     }
 
     func deleteLast(numberOfEntries: Int) {
-        let startDate = Calendar.current.date(byAdding: .day, value: -numberOfEntries, to: Date())!
+        guard let startDate = Calendar.current.date(byAdding: .day, value: -numberOfEntries, to: Date()) else { return }
         let entries = getData(startDate: startDate, endDate: Date(), includedDays: [])
 
         for entry in entries {
@@ -29,7 +29,7 @@ extension DataController {
     }
 
     func deleteRandomFromLast(numberOfEntries: Int) {
-        let startDate = Calendar.current.date(byAdding: .day, value: -numberOfEntries, to: Date())!
+        guard let startDate = Calendar.current.date(byAdding: .day, value: -numberOfEntries, to: Date()) else { return }
         let entries = getData(startDate: startDate, endDate: Date(), includedDays: [])
 
         for entry in entries where Bool.random() {