Update JS dependencies, fix lint (#18389)

- Update all JS dependencies, including a security issue in mermaid
- Fix new linter errors related to value-keyword-case
- Tested Mermaid and Swagger

Co-authored-by: zeripath <art27@cantab.net>
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
Co-authored-by: techknowlogick <techknowlogick@gitea.io>

web_src/less/_repository.less

@@ -3039,7 +3039,7 @@ td.blob-excerpt {
 }
 
 .file-info-entry + .file-info-entry {
-  border-left: 1px solid currentColor;
+  border-left: 1px solid currentcolor;
   margin-left: 8px;
   padding-left: 8px;
 }

web_src/less/_svg.less

@@ -1,7 +1,7 @@
 .svg {
   display: inline-block;
   vertical-align: text-top;
-  fill: currentColor;
+  fill: currentcolor;
 
   .middle & {
     vertical-align: middle;

web_src/less/features/heatmap.less

@@ -17,7 +17,7 @@
   }
 
   text {
-    fill: currentColor !important;
+    fill: currentcolor !important;
   }
 
   .total-contributions {

web_src/less/standalone/swagger.less

@@ -26,6 +26,6 @@ body {
 
 .swagger-back-link svg {
   color: inherit;
-  fill: currentColor;
+  fill: currentcolor;
   margin-right: .5rem;
 }