refact!: prepare for transfer

apply @sgoudham's suggestions
ref https://github.com/catppuccin/catppuccin/issues/2696#issuecomment-2707252468

changes:
- removed every styling outside of the colors themselves (i.e. rounding,
  `text-shadow` & `padding`)
- changed the default accent color to `mauve`
- renamed flavour CSS filenames from `<f>.css` to `catppuccin-<f>.css`

Signed-off-by: Adam Perkowski <adas1per@protonmail.com>

themes/catppuccin-macchiato.css

@@ -0,0 +1,25 @@
+:root {
+  --rosewater: #f4dbd6;
+  --flamingo: #f0c6c6;
+  --pink: #f5bde6;
+  --mauve: #c6a0f6;
+  --red: #ed8796;
+  --maroon: #ee99a0;
+  --peach: #f5a97f;
+  --yellow: #eed49f;
+  --green: #a6da95;
+  --teal: #8bd5ca;
+  --sky: #91d7e3;
+  --sapphire: #7dc4e4;
+  --blue: #8aadf4;
+  --lavender: #b7bdf8;
+
+  --main-color: var(--mauve);
+  --main-background: #24273a;
+  --second-background: #1e2030;
+  --hover-background: #363a4f;
+  --main-text: #cad3f5;
+  --dimmer-text: #939ab7;
+  --green-color: var(--green);
+  --red-color: var(--red);
+}