Apply SEO and metadata best practices

[mintlify]

Summary

Improve titles and descriptions on the 13 NeuralForecast pages changed in this window so each has a unique, descriptive title under 60 characters and a description between 130 and 160 characters.

Changes

• Added a description to capabilities/categorical_features and tutorials/simulation, and rewrote the simulation title to drop the | NeuralForecast boilerplate suffix.
• Expanded generic model titles (e.g. DeepAR, LSTM, xLSTM) into descriptive titles that name the architecture and its purpose.
• Rewrote overlong descriptions (DilatedRNN, MLPMultivariate, TCN, TimeXer, TSMixerx) to fit within 160 characters.
• Rewrote very short descriptions on XLinear (80 chars) and xLSTM (38 chars) to summarize each model in the 130–160 char range.
• Every audited page now has a unique description.

[mintlify]

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Project	Status	Preview	Updated (UTC)
nixtlaverse_nixtla_io	🟢 Ready	View Preview	Aug 4, 2026, 4:11 PM

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