Update docstrings and embedded examples.

n/a docs only

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Co-authored-by: Copilot <[email protected]>

## Describe your changes

Fixed type checking issues.

## Testing Plan

Covered by CI.

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## Describe your changes

Fixes an issue with `st.logo` resizing/shrinking to unexpected sizes if
top navigation is used.

## GitHub Issue Link (if applicable)

- Closes #13225

## Testing Plan

- Added e2e test.

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## Describe your changes

- Fixes a regression where both the Sidebar and Top nav would be visible
when navigation is set to `top`.

## GitHub Issue Link (if applicable)

Fixes #13224

## Testing Plan

- Adds e2e tests

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## Describe your changes

Authlib (1.6.6) & tornado (6.5.3) got updated, causing some issues with
our CI.

The authlib session aspect likely also breaks existing usage and
requires a patch.


Closes #13335

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Co-authored-by: Laura Wilby <[email protected]>

Our current theme hashing only handles top level `[theme]` properties in calculating the theme hash to determine whether theme has been updated. This was sufficient prior to custom theming, but now section theme changes are silently ignored and a re-run does not trigger the expected update.

This PR implements comprehensive theme hashing that includes all theme
properties - including new subsections (`light`, `dark`, etc.) so
changes now properly trigger theme reprocessing.

This PR fixes the interaction issue with theme caching and support of light/dark custom themes - the user-selected theme (Light or Dark) from the Settings menu does not persist between page reloads.

)

## Describe your changes

- Improves the handling of keyboard shortcuts to prevent accidental
triggering of global single-key shortcuts (like "c", "r", and "a") when
the user is typing in editable elements, including those inside Shadow
DOM.
- Ensures that shortcuts are suppressed in appropriate contexts across
both app-level and widget-level handlers.

## GitHub Issue Link (if applicable)

## Testing Plan

- Adds unit tests

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…ts (#13376)

## Describe your changes

Added support for the `crossOrigin` attribute on CSS link elements to
CCv2 instances. This ensures that CSS resources loaded from different
origins follow the same cross-origin policy as other resources in the
application. The implementation:

1. Uses the existing `useCrossOriginAttribute` hook to determine the
appropriate crossOrigin value
2. Applies the crossOrigin attribute to link elements when loading CSS
from relative paths
3. Maintains consistent behavior with other media elements in the
application

## Testing Plan

- Adds unit tests

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Fixes a regression where starting with an empty column in data editor
leads to the value being returned as list.

- Closes #13305

- Added unit and e2e tests.

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## Describe your changes

Fixes tooltip rendering when help text contains newlines (`\n\n`).
Previously, the `:help[]` text directive would break, causing help text
to render in the markdown/caption content instead of inside the tooltip.

**Solution:**
- Pass help text via react context instead of in the directive.
- Preserves inline tooltip rendering which is necessary for text
alignment to work correctly

## GitHub Issue Link (if applicable)

Fixes #13339

## Testing Plan

- [x] E2E Tests

**E2E tests:**
- `e2e_playwright/st_markdown.py` - Test app with tooltips containing
newlines
- `e2e_playwright/st_markdown_test.py` - Parameterized tests covering:
  - `st.markdown` with newlines in default alignment
  - `st.caption` with newlines
- `st.markdown` with center alignment + newlines (verifies design
decision)
  - Negative assertions to ensure text doesn't leak into element content

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## Describe your changes

Fixes the misaligned spinner label and timer text if `show_time=True`:

<img width="454" height="106" alt="image"
src="https://github.com/user-attachments/assets/e6345d8e-75e0-4579-8d2d-3f081267771b"
/>

## GitHub Issue Link (if applicable)

- Closes #13387

## Testing Plan

- Testing the visual aspect here is really tricky since a snapshot would
be quite indeterministic :(

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