feat: lazysecrets list colours names from the theme, with icons

docs/links.md

@@ -144,7 +144,7 @@ and its name, tab-separated. It's what Go to searches, so fzf, or an
 editor's picker, can search it instead:
 
 ```sh
-lazysecrets list | fzf --delimiter='\t' --with-nth=3 \
+lazysecrets list | fzf --ansi --delimiter='\t' --with-nth=3 \
   --bind 'enter:become(lazysecrets open {1})' \
   --bind 'ctrl-y:execute-silent(lazysecrets get {1} | pbcopy)'
 ```
@@ -156,7 +156,13 @@ Azure or Databricks, for an answer at once. Repos are always read, from
 disk. What it loads is cached for the TUI too. Lists it can't read are
 reported on stderr; it stops when the reader goes, after a pick in fzf.
 
-`--format json` prints an object per line instead, for editor plugins:
+The name is coloured from your [theme](config.md#theme), with the
+provider's icon when [icons](config.md#theme) are on (`ui.icons`); fzf
+shows the colours with `--ansi`. `--color never` leaves them out, for
+scripts, and `--icons=false` the icons. The link is never coloured.
+
+`--format json` prints an object per line instead, for editor plugins,
+without colours or icons:
 
 ```json
 {"link":"lazysecrets://azure/kv-app-prod.vault.azure.net/secrets/db-password","kind":"secret","provider":"azure","path":["platform-prod","kv-app-prod","db-password"],"account":"alice"}