Fix applying dark forest theme

apps/block_scout_web/lib/block_scout_web/templates/layout/app.html.eex

@@ -39,14 +39,16 @@
     <% raw_dark_forest_addresses = CustomContractsHelpers.get_raw_dark_forest_addresses_list() %>
     <script>
       function applyCustomMode() {
-        const darkForestContractAddressHashes = "<%= raw_dark_forest_addresses %>".split(',').map(hash => hash.toLowerCase())
-
-        darkForestContractAddressHashes.forEach(darkForestContractAddressHash => {
-          if (window.location.pathname.toLowerCase().includes(darkForestContractAddressHash)) {
-            document.body.className += " " + "dark-forest-theme-applied";
-            return;
-          }
-        })
+        const darkForestContractAddressHashesRaw = "<%= raw_dark_forest_addresses %>"
+        if (darkForestContractAddressHashesRaw !== "") {
+          const darkForestContractAddressHashes = darkForestContractAddressHashesRaw.split(',').map(hash => hash.toLowerCase())
+          darkForestContractAddressHashes.forEach(darkForestContractAddressHash => {
+            if (window.location.pathname.toLowerCase().includes(darkForestContractAddressHash)) {
+              document.body.className += " " + "dark-forest-theme-applied";
+              return;
+            }
+          })
+        }
       }
       function applyDarkMode() {
         if (localStorage.getItem("current-color-mode") === "dark") {

apps/block_scout_web/priv/gettext/default.pot

@@ -72,7 +72,7 @@ msgid "(query)"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/layout/app.html.eex:68
+#: lib/block_scout_web/templates/layout/app.html.eex:70
 msgid "- We're indexing this chain right now. Some of the counts may be inaccurate."
 msgstr ""
 

apps/block_scout_web/priv/gettext/en/LC_MESSAGES/default.po

@@ -72,7 +72,7 @@ msgid "(query)"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/layout/app.html.eex:68
+#: lib/block_scout_web/templates/layout/app.html.eex:70
 msgid "- We're indexing this chain right now. Some of the counts may be inaccurate."
 msgstr ""