fix(renderer): 修复暗色主题下部分字体不可见的问题

src/renderer/src/components/CaptionLog.vue

@@ -304,6 +304,7 @@ function clearCaptions() {
 }
 
 .caption-title {
+  color: var(--icon-color);
   display: inline-block;
   font-size: 24px;
   font-weight: bold;

src/renderer/src/components/SoftwareLog.vue

@@ -96,6 +96,7 @@ const columns = [
 
 <style scoped>
 .log-title {
+  color: var(--icon-color);
   display: inline-block;
   font-size: 24px;
   font-weight: bold;