Switched to using pcall for imports

Signed-off-by: Taken <taken@mairimashita.org>

after/plugin/nvimcord.lua

@@ -1,4 +1,9 @@
-require('nvimcord').setup {
+local setup, nvimcord = pcall(require, 'nvimcord')
+if not setup then
+    return
+end
+
+nvimcord.setup {
     autostart = true,
     client_id = '954365489214291979',
     large_file_icon = true,