Catppuccin Latte sets tab_bar_background #BCC0CC, a grey noticeably
darker than its #EFF1F5 background, so in light mode the tab bar sat on
a band of its own colour. kitty.conf leaves the setting commented out --
kitty's default is to follow the terminal background -- but the
generated *-theme.auto.conf files are applied with priority over
kitty.conf, so the theme won and there was nowhere left to override it.
repair-auto-themes.sh already normalises macos_titlebar_color for the
same reason; give tab_bar_background the same treatment. The canonical
copies under theme-modes stay exactly as the themes kitten saved them.
Also picks up the current theme choices: SpaceGray Eighties for dark,
Catppuccin Latte for light.
Captures the current theme choices in the canonical store: theme-modes/
dark.conf is Galaxy and light.conf is GrokDay, both verified identical
to their source theme files.
`kitten themes` treats every .conf in <config-dir>/themes as a user
theme, which the mode system's canonical store was sitting in -- so the
picker was offering three bogus entries named light, dark and
no-preference, and had been since that store was introduced.
Move the store to ./theme-modes so ./themes means only what the kitten
means by it, and repoint apply-theme-mode.sh, the kitten shim, the
run_after hook and the test at the new path.
GrokNight and GrokDay move into ./themes with the ## name/author/
license/upstream/blurb header the kitten reads, so they now show up in
`kitten themes` and `--dump-theme` resolves them.
theme-modes/dark.conf carries the #202020 theme that was already on
disk: the file had to be re-added at its new path, so that drift comes
along with it.
