chore: use import.meta.dirname instead of __dirname

[meesfrensel]

Description

Use import.meta.dirname instead of __dirname and __filename where possible. Got a vite warning about a future incompatibility, so I updated the vite config, and a few other usages.

immich_web               | (!) Your Vite config uses features that are unsupported by `configLoader: 'native'`, which is planned to become the default in a future major version of Vite:
immich_web               |   - `__dirname` (vite.config.ts:31:34). Use `import.meta.dirname` instead
immich_web               | Set `VITE_CONFIG_NATIVE_IGNORE_WARNING=true` to suppress this warning.

[danieldietzler]

ty :)