Renamed titles of basic examples

[InesaFitsner]

Description

Test code

# Minimal test/reproduction code for reviewers, if applicable.

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

Checklist

• I signed the CLA.
• I have performed a self-review of my own code.
• My code follows the style guidelines of this project.
• I have commented my code, particularly in hard-to-understand areas.
• My changes generate no new warnings.
• New and existing tests pass locally with my changes.
• I have made corresponding documentation changes, if applicable.
• I have added changelog entries for user-facing changes, if applicable.
• I have updated release guide pages and website/sidebars.yml for breaking changes, removals, and deprecations, if applicable.

Screenshots

Additional details

Summary by Sourcery

Standardize example titles and captions across docs and Python example metadata to use descriptive, control-specific names instead of generic 'Basic' or numbered labels.

Documentation:

• Rename example section headings and image captions in control and service documentation to use descriptive control names and behaviors.
• Update chart documentation example titles to describe the specific chart type or interaction shown (e.g., line, bar, pie, box plot).

Chores:

• Align titles in example pyproject metadata with the updated descriptive names used in the docs for consistency across the gallery.

[sourcery-ai]

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View logs

[ndonkoHenri]

Using the Control's name as title here, doesnt seem that right to me. Why not maybe use the metadata title?

flet/sdk/python/examples/extensions/audio/example_1/pyproject.toml

Lines 16 to 17 in 53da935

	[tool.flet.metadata]
	title = "Audio playback controls"

Btw, in addition to renaming the "basic" examples, I am thinking we could also rename the "example_x" folders, for example, in this case we have "audio/example_1", which could be renamed to something better, like the above metadata title.

[FeodorFitsner]

Yep, both example auto-titles and folder renamings are coming in the next PR.