docs: fix 14 typos in docs, comments and docstrings (#14541)

docs: fix typos in docs, comments and docstrings

Prose, comments and docstrings only. No executable line changed.

docs/:
- optimization/memory.md: maxmium -> maximum; heigh -> height (in the
  channels_last layout tuple, which read "(batch size, heigh, width,
  channels)")
- api/pipelines/bria_fibo.md: proffesional -> professional
- api/pipelines/wan.md: involed -> involved

src/ comments and docstrings:
- guiders/magnitude_aware_guidance.py: supression -> suppression
- models/attention.py: spliting -> splitting
- models/attention_dispatch.py: abritrary -> arbitrary (x2)
- models/transformers/transformer_ltx2.py: timstamps -> timestamps (x2)
- pipelines/ltx2/pipeline_ltx2{,_image2video}.py: corrct -> correct
- pipelines/deprecated/unidiffuser/modeling_uvit.py: tbe -> the
- pipelines/visualcloze/pipeline_visualcloze_{combined,generation}.py:
  "whe they are lists" -> "when they are lists" in a user-facing
  ValueError message

Deliberately not touched:
- pipeline_kandinsky*.py "promt"/"scren" live inside prompt_template,
  which is fed to the text encoder verbatim. Changing them would change
  generation output.
- ANE (Apple Neural Engine), MoT (Mixture-of-Transformers): initialisms.
- "racoon": appears in prompt examples whose reference images were
  generated with that exact prompt.
- "Shuting Wang": a paper author's name.