Restructure repo so the light variant installs as theme 'tintenblau'

omarchy-theme-install clones the repo into ~/.config/omarchy/themes/<name>
and omarchy-theme-set stages only the repo root. Moving the light variant
to the root makes 'omarchy theme install' produce a working theme; the dark
variant stays as tintenblau-dark/ subfolder.

swayosd.css

@@ -0,0 +1,41 @@
+@define-color base #f0ead9;
+@define-color text #1e2a4a;
+@define-color border #8a8694;
+@define-color image #2a3f6f;
+@define-color label #2a3f6f;
+@define-color progress #5a4a72;
+
+
+/* Cancel out Omarchy settings */
+window:not(:backdrop),
+window:backdrop {
+    border: none;
+    border-width: 0;
+    border-radius: 6px;
+    background-color: transparent;
+    box-shadow: none;
+    padding: 12px;
+}
+
+
+/* Draw a new background (solid — like moodpeak, no blur) */
+window:not(:backdrop) #container,
+window:backdrop #container {
+    border: 2px solid @border;
+    border-radius: 6px;
+    background-color: @base;
+    padding: 12px;
+    background-clip: padding-box;
+    box-shadow: 2px 2px 9px 0px rgba(0, 0, 0, 0.25);
+}
+
+/* Volume / brightness bar: subtle track + accent edge */
+progressbar trough {
+    background-color: rgba(138, 134, 148, 0.6);
+    border: 1px solid rgba(42, 63, 111, 0.22);
+    border-radius: 3px;
+}
+
+progress {
+    border-radius: 3px;
+}