feat: brighten timeline lines and joints

src/assets/timeline/joint-start.svg

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <svg width="24.399mm" height="7.6165mm" version="1.1" viewBox="0 0 24.399 7.6165" xmlns="http://www.w3.org/2000/svg">
 	<g transform="translate(-115.97 -188.99)">
-		<path d="m122.35 188.99c0 4.3726 11.131 3.333 11.131 7.6165" fill="none" stroke="#2e2e32" stroke-width=".8"/>
+		<path d="m122.35 188.99c0 4.3726 11.131 3.333 11.131 7.6165" fill="none" stroke="#44444a" stroke-width=".8"/>
 	</g>
 </svg>

src/assets/timeline/joint-stop.svg

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <svg width="24.399mm" height="7.6165mm" version="1.1" viewBox="0 0 24.399 7.6165" xmlns="http://www.w3.org/2000/svg">
 	<g transform="translate(-115.97 -188.99)">
-		<path d="m133.54 188.99c0 4.3726-10.693 3.333-10.693 7.6165" fill="none" stroke="#2e2e32" stroke-width=".8"/>
+		<path d="m133.54 188.99c0 4.3726-10.693 3.333-10.693 7.6165" fill="none" stroke="#44444a" stroke-width=".8"/>
 	</g>
 </svg>

src/assets/timeline/joint.svg

@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<svg width="24.399mm" height="7.6165mm" version="1.1" viewBox="0 0 24.399 7.6165" xmlns="http://www.w3.org/2000/svg">
-	<g transform="translate(-115.97 -188.99)">
-		<path d="m122.35 188.99c0 4.3726 11.131 3.333 11.131 7.6165" fill="none" stroke="#2e2e32" stroke-width=".8"/>
-	</g>
-</svg>

src/assets/timeline/line.svg

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <svg width="1mm" height="4.2333mm" version="1.1" viewBox="0 0 1 4.2333" xmlns="http://www.w3.org/2000/svg">
 	<g transform="translate(-124.76,-160.47)">
-		<path d="m125.26 160.47v4.2333" fill="none" stroke="#2e2e32"/>
+		<path d="m125.26 160.47v4.2333" fill="none" stroke="#44444a"/>
 	</g>
 </svg>