[WynandVStaden]

Fixes #1038.

Problem

flyline set-style inline-suggestion=... only styled the #idx=… <age> metadata after an inline history suggestion. The suggested text itself was drawn with secondary_text, so the setting appeared to do nothing.

Change

• src/app/ui.rs: the suggested text is now drawn with colour_palette.inline_suggestion(), like the metadata after it.
• crates/flycontent/src/palette.rs: the default inline_suggestion style is now what the suggested text already looked like (dim in the dark theme, plain in the light theme), so the default look of suggestions does not change.

One visible difference with the defaults: the metadata used to be blue italic (cyan in the light theme) and is now the same style as the suggestion. If you would rather keep a separate default look for the metadata, I can give it its own style name instead.

Testing

Built the release library on Ubuntu (WSL), loaded it into bash inside tmux with a one-line history, typed echo hel and captured the pane with tmux capture-pane -e:

set-style inline-suggestion=	master	this branch
bold red	suggestion ESC[2m (dim), metadata bold red	suggestion and metadata ESC[1m ESC[31m (bold red)
dim italic	suggestion ESC[2m, metadata italic	suggestion and metadata ESC[2;3m (dim italic)
not set	suggestion ESC[2m, metadata ESC[3m ESC[34m	suggestion and metadata ESC[2m

• cargo test --lib --workspace: 884 + 110 + 74 passed.
• cargo fmt --all -- --check and cargo clippy --workspace --all-features -- -D warnings: clean.
• No new unit test: the render path needs an App, which library tests cannot create (see AGENTS.md). Docker integration tests not run.

[HalFrgrd]

Looks good, thanks!