Misc changes.

Some small changes in general:
- Moved the SQL Version check struct into the function.
- Updated hadolint to 2.0.0
- Fixed hadolint 2.0.0 warnings
- Updated github workflows
- Added .editorconfig for some general shared editor settings.

fix(env.template): IP_HEADER defaults to X-Real-IP

Icon and SMTP Debug fixes.

This was wrong in commit 88c56de9.

- We need to add some feature to enable smtp debugging again. See: https://github.com/lettre/lettre/pull/584
- Upstream added the fallback icon again, probably because of caching ;). See: https://github.com/bitwarden/server/pull/1149
- Enabled gzip and brotli compression support with reqwest. Some sites seem to force this, or assume that because of the User-Agent string it is supported. This caused some failed icons.

Fixes #1540

Run Clippy

Client caching

Co-authored-by: Daniel García <dani-garcia@users.noreply.github.com>

Updated diagnostics page

- Added reverse proxy check
- Better deffinition of internet proxy
- Added SQL Server version detection

`push` only counts for pushes to branches on the repo, not forks

It's not incorrectly wrapped. We care about the return type being `Option`.

https://rust-lang.github.io/rust-clippy/master/index.html#upper_case_acronyms

https://rust-lang.github.io/rust-clippy/master/index.html#from_over_into

The URLs are cachebusted, so updates will still be applied cleanly and immediately

This should make the vault pages load much faster, and massively reduce the number of requests.

Return generic message when Send not available

Sync global_domains.json

Reference: https://github.com/messense/rust-musl-cross/pull/34

This should help avoid leaking information about (non)existence of Send
and be more in line with what official server returns.