Switched to using pcall for imports

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

after/plugin/presence.lua

@@ -1,4 +1,9 @@
-require("presence").setup({
+local setup, presence = pcall(require, "presence")
+if not setup then
+    return
+end
+
+presence.setup({
 
     auto_update        = true,
     neovim_image_text  = "The One True Text Editor",