Format file format from Windows/dos to Unix (#1949)

### What problem does this PR solve?

Related source file is in Windows/DOS format, they are format to Unix
format.

### Type of change

- [x] Refactoring

Signed-off-by: Jin Hai <haijin.chn@gmail.com>

web/src/theme/theme.ts

@@ -1,11 +1,11 @@
-module.exports = {
-  'primary-color': '#338AFF', // '#338AFF',
-  'border-radius-base': '4px',
-  // 'menu-dark-color': '',
-  // 'menu-dark-danger-color': '',
-  'menu-dark-bg': '#092140',
-  'menu-dark-item-active-bg': '#092140'
-
-  // 'menu-dark-arrow-color': '',
-  // 'menu-dark-inline-submenu-bg': '',
-};
+module.exports = {
+  'primary-color': '#338AFF', // '#338AFF',
+  'border-radius-base': '4px',
+  // 'menu-dark-color': '',
+  // 'menu-dark-danger-color': '',
+  'menu-dark-bg': '#092140',
+  'menu-dark-item-active-bg': '#092140',
+
+  // 'menu-dark-arrow-color': '',
+  // 'menu-dark-inline-submenu-bg': '',
+};