Implement colors.toml for Aether templates (#73)

* Add colors.toml template for omarchy compatibility

Adds a new template file that generates colors.toml in the omarchy format,
enabling Aether themes to work with the new omarchy templating system
introduced in basecamp/omarchy#4053.

The template includes:
- Accent colors (accent, active_border_color, active_tab_background)
- Cursor and selection colors
- All 16 ANSI colors (color0-color15)

* Remove header comments from colors.toml

---------

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

Author: bjarneo

templates/colors.toml

@@ -0,0 +1,35 @@
+# Accent and UI colors
+accent = "{blue}"
+active_border_color = "{bright_blue}"
+active_tab_background = "{blue}"
+
+# Cursor colors
+cursor = "{foreground}"
+
+# Primary colors
+foreground = "{foreground}"
+background = "{background}"
+
+# Selection colors
+selection_foreground = "{background}"
+selection_background = "{blue}"
+
+# Normal colors (ANSI 0-7)
+color0 = "{black}"
+color1 = "{red}"
+color2 = "{green}"
+color3 = "{yellow}"
+color4 = "{blue}"
+color5 = "{magenta}"
+color6 = "{cyan}"
+color7 = "{white}"
+
+# Bright colors (ANSI 8-15)
+color8 = "{bright_black}"
+color9 = "{bright_red}"
+color10 = "{bright_green}"
+color11 = "{bright_yellow}"
+color12 = "{bright_blue}"
+color13 = "{bright_magenta}"
+color14 = "{bright_cyan}"
+color15 = "{bright_white}"