feat(extra-info): adapt chips styles to the RCE thread page

The RCE thread page includes a different style of chip compared to the
old thread page.

Fixed: twpowertools:173
Change-Id: I59368cf09be778a4ad7f5d2aefdf5177cb370f11
diff --git a/src/ccDarkTheme/components/custom/_chip.scss b/src/ccDarkTheme/components/custom/_chip.scss
new file mode 100644
index 0000000..f2840d3
--- /dev/null
+++ b/src/ccDarkTheme/components/custom/_chip.scss
@@ -0,0 +1,4 @@
+.TWPT-extrainfo-chip {
+  border: 1px solid var(--TWPT-interop-subtle-border)!important;
+  color: var(--TWPT-interop-secondary-text)!important;
+}
diff --git a/src/ccDarkTheme/components/custom/_index.scss b/src/ccDarkTheme/components/custom/_index.scss
index 90ce688..e73007c 100644
--- a/src/ccDarkTheme/components/custom/_index.scss
+++ b/src/ccDarkTheme/components/custom/_index.scss
@@ -1,2 +1,3 @@
+@forward 'chip';
 @forward 'log';
 @forward 'warning';