feat(wofi): add wallpaper selection menu

.config/wofi/wallpaper.css

@@ -0,0 +1,47 @@
+window {
+    background-color: #1e1e2e;
+    border-radius: 8px;
+    border: 2px solid #313244;
+}
+
+#input {
+    margin: 2px;
+    padding: 4px;
+    border-radius: 4px;
+    border: none;
+    background-color: #313244;
+    color: #cdd6f4;
+}
+
+#inner-box {
+  margin: 0px;
+}
+
+#outer-box {
+  margin: 0px;
+}
+
+#scroll {
+  margin: 0px;
+}
+
+#text {
+  margin: 2px;
+  color: #cdd6f4;
+}
+
+#entry {
+  padding: 2px;
+  margin: 0px;
+  border-radius: 4px;
+}
+
+#entry:selected {
+  background-color: #313244;
+}
+
+#img {
+  margin: 2px;
+  padding-left: 4px;
+  border-radius: 4px;
+}