feat: Add fresh database setup script and media handling improvements

- Introduced a new script for setting up a fresh database with ordered migration tasks.
- Added a utility function to find media by filename, improving media handling in various scripts.
- Updated preload scripts to utilize the new media fetching utility.
- Refactored datenschutz, impressum, and mitglied-werden fields to use stable IDs and anchor IDs.
- Enhanced home and network pages to accommodate new field structures.
- Added new preload script for global CMS settings.
- Improved code readability and organization across multiple files.

src/spa/pages/Home.tsx

@@ -596,7 +596,7 @@ function StatusSlider({ data }: { data?: HomeCms }) {
   const phases = fallbackArray(data?.phases, homeContent.status.phases).map((phase, i) => {
     const phaseRecord = phase as StatusPhase
     const fallbackPhase = homeContent.status.phases[i]
-    const fallbackCta = fallbackPhase?.cta
+    const fallbackCta = fallbackPhase?.cta?.label
       ? { label: fallbackPhase.cta.label, to: fallbackPhase.cta.url }
       : null
     const cta = phaseRecord?.cta?.label