Rename scss files

src/themes/mermaid.scss

@@ -1,24 +1,24 @@
-  @import 'flow';
-  @import 'sequenceDiagram';
-  @import 'gantt';
-  @import 'classDiagram';
-  @import 'gitGraph';
+@import 'flow';
+@import 'sequence';
+@import 'gantt';
+@import 'class';
+@import 'git';
 
-  .node text {
-    font-family: 'trebuchet ms', verdana, arial;
-    font-size: 14px;
-  }
+.node text {
+  font-family: 'trebuchet ms', verdana, arial;
+  font-size: 14px;
+}
 
-  div.mermaidTooltip {
-    position: absolute;
-    text-align: center;
-    max-width: 200px;
-    padding: 2px;
-    font-family: 'trebuchet ms', verdana, arial;
-    font-size: 12px;
-    background: $secondBkg;
-    border: 1px solid $border2;
-    border-radius: 2px;
-    pointer-events: none;
-    z-index: 100;
-  }
+div.mermaidTooltip {
+  position: absolute;
+  text-align: center;
+  max-width: 200px;
+  padding: 2px;
+  font-family: 'trebuchet ms', verdana, arial;
+  font-size: 12px;
+  background: $secondBkg;
+  border: 1px solid $border2;
+  border-radius: 2px;
+  pointer-events: none;
+  z-index: 100;
+}