docs: fix spelling in website and doc comments

[loris307]

Fixes a handful of spelling mistakes in the website docs and in doc comments.

Website (website/src/)

• config.md — "platform dependant" -> "dependent", "default stiky item" -> "sticky"
• community/bacon-dev.md — "direcly edit the markdonw files" -> "directly edit the markdown files"
• community/emacs-bacon.md — "syncronizes" -> "synchronizes", "customizeable" -> "customizable"

Doc comments

• src/context_nature.rs — "The kind of projec/context" -> "project/context"
• src/tui/app_state.rs — "Dimissals" -> "Dismissals"
• src/tui/mission_state.rs — "volontary scroll" -> "voluntary scroll"
• src/sound/play_sound.rs — "reources directory" -> "resources directory", "syntax unconsistency" -> "inconsistency"

Comments and documentation only; no code paths touched.

Two things I deliberately left alone:

• prefered in mission_state.rs is part of the identifiers prefered_scroll_end,
  scroll_to_prefered_end and is_scroll_at_prefered_end. Renaming those is a refactor
  rather than a typo fix, so it seemed better to leave that to you.
• analyzis in src/export/exporter.rs is a #[serde(alias = ...)], which looks like an
  intentional backwards-compatible spelling, so changing it would break existing configs.

[Canop]

New version of the site deployed