[mod] make themes.all update pygments*.less

Add a searx/static/themes/*/src/generated empty folder

searx/static/themes/oscar/src/generated/pygments-logicodev.less

@@ -1,6 +1,6 @@
 /*
    this file is generated automatically by searx_extra/update/update_pygments.py
-   using pygments version 2.8.1
+   using pygments version 2.9.0
 */
 
 .code-highlight .linenos {

searx/static/themes/oscar/src/generated/pygments-pointhi.less

@@ -1,6 +1,6 @@
 /*
    this file is generated automatically by searx_extra/update/update_pygments.py
-   using pygments version 2.8.1
+   using pygments version 2.9.0
 */
 
 .code-highlight .linenos {

searx/static/themes/oscar/src/less/logicodev-dark/oscar.less

@@ -1,6 +1,7 @@
 @import "../logicodev/variables.less";
 @import "../../../../__common__/less/new_issue.less";
 @import "../../../../__common__/less/stats.less";
+@import "../../generated/pygments-logicodev.less";
 
 @stacked-bar-chart: rgb(213, 216, 215, 1);
 

searx/static/themes/oscar/src/less/logicodev/code.less

@@ -2,8 +2,6 @@ pre, code {
     font-family: 'Ubuntu Mono', 'Courier New', 'Lucida Console', monospace !important;
 }
 
-@import "pygments.less";
-
 .code-highlight pre {
     margin-bottom: 25px;
     padding: 20px 10px;

searx/static/themes/oscar/src/less/logicodev/oscar.less

@@ -1,6 +1,7 @@
 @import "variables.less";
 @import "../../../../__common__/less/new_issue.less";
 @import "../../../../__common__/less/stats.less";
+@import "../../generated/pygments-logicodev.less";
 
 @import "navbar.less";
 @import "footer.less";

searx/static/themes/oscar/src/less/pointhi/code.less

@@ -1,2 +0,0 @@
-@import "pygments.less";
-

searx/static/themes/oscar/src/less/pointhi/oscar.less

@@ -1,6 +1,7 @@
 @import "variables.less";
 @import "../../../../__common__/less/new_issue.less";
 @import "../../../../__common__/less/stats.less";
+@import "../../generated/pygments-pointhi.less";
 
 @import "footer.less";
 @import "checkbox.less";

searx/static/themes/simple/src/generated/pygments.less

@@ -1,6 +1,6 @@
 /*
    this file is generated automatically by searx_extra/update/update_pygments.py
-   using pygments version 2.8.1
+   using pygments version 2.9.0
 */
 
 .code-highlight .linenos {

searx/static/themes/simple/src/less/code.less

@@ -5,4 +5,4 @@
     border: inherit;
 }
 
-@import "pygments.less";
+@import "../generated/pygments.less";