fix: prettier formatting, viteStaticCopy paths, HydrateFallback warning

- Fix prettier formatting in useCall.ts and initMatrix.ts (unblocks CI)
- Fix viteStaticCopy stripBase so manifest.json and public/locales/ land
  at correct output paths (was getting extra 'public/' prefix from v4 path
  preservation behavior)
- Silence react-router v7 HydrateFallback warning on root route (SPA has
  no SSR hydration, null is intentional)

vite.config.js

@@ -24,14 +24,17 @@ const copyFiles = {
     {
       src: 'public/manifest.json',
       dest: '',
+      rename: { stripBase: true },
     },
     {
       src: 'public/res/android',
       dest: 'public/',
+      rename: { stripBase: 2 },
     },
     {
       src: 'public/locales',
       dest: 'public/',
+      rename: { stripBase: 1 },
     },
   ],
 };