Update SVG icons: added unicode values for option, square-minus, and volume-4 icons; adjusted path syntax for option and volume-4 icons.

icons/outline/option.svg

@@ -2,6 +2,7 @@
 category: Symbols
 tags: [apple, key, keyboard, option]
 version: "1.0"
+unicode: "1019f"
 -->
 <svg
   xmlns="http://www.w3.org/2000/svg"
@@ -14,5 +15,5 @@ version: "1.0"
   stroke-linecap="round"
   stroke-linejoin="round"
 >
-  <path d="M14,6h5M19,18h-5l-5-12h-4"/>
+  <path d="M14 6h5m0 12h-5l-5 -12h-4" />
 </svg>

icons/outline/square-minus.svg

@@ -2,7 +2,7 @@
 tags: [remove, delete, indeterminate, square, minus, rectangular, subtract, less, decrease, negative, geometry]
 category: Shapes
 version: "1.0"
-unicode: "1018b"
+unicode: "1019e"
 -->
 <svg
   xmlns="http://www.w3.org/2000/svg"

icons/outline/volume-4.svg

@@ -1,6 +1,8 @@
 <!--
 category: Media
 tags: [mute, music, sound, off]
+unicode: "1019d"
+version: "3.35"
 -->
 <svg
   xmlns="http://www.w3.org/2000/svg"
@@ -14,6 +16,6 @@ tags: [mute, music, sound, off]
   stroke-linejoin="round"
 >
   <g transform="translate(1.5, 0)">
-    <path d="M8 15H6a1 1 0 0 1 -1 -1v-4a1 1 0 0 1 1 -1h2l3.5 -4.5a.8 .8 0 0 1 1.5 .5v14a.8 .8 0 0 1 -1.5 .5L8 15" />
+  <path d="M8 15h-2a1 1 0 0 1 -1 -1v-4a1 1 0 0 1 1 -1h2l3.5 -4.5a.8 .8 0 0 1 1.5 .5v14a.8 .8 0 0 1 -1.5 .5l-3.5 -4.5" />
   </g>
 </svg>