docs: tidy up website tooling and repo config

[vdusek]

Website tooling and repo config cleanup, same as crawlee-python#2327 and apify-sdk-python#1181.

• Website code is linted with type-aware oxlint (new website/tsconfig.json), and warnings fail CI.
• Removed unused website deps and aligned version ranges with the lockfile.
• YAML: 2-space indent, no quotes unless needed, double quotes when they are.
• markdownlint: default 2-space list indent (as in apify-docs) and fenced code blocks only.
• Fixed the .editorconfig YAML glob.

✍️ Drafted by Claude Code

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 95.46%. Comparing base (ef8f088) to head (a3484d5).

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1126   +/-   ##
=======================================
  Coverage   95.46%   95.46%           
=======================================
  Files          61       61           
  Lines        5935     5935           
=======================================
  Hits         5666     5666           
  Misses        269      269           

Flag	Coverage Δ
integration	90.59% <ø> (ø)
unit	88.87% <ø> (ø)

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[apify-approval-mirror]

Mirroring approval from @Mantisus.