fix: Updates to telekasten to use the built in toggle_todo function

instead of the custom one (works well enough), removing lazy loading of
the plugin to allow calling from telekasten commands from nvim load, and
adding ZSH functions to open a new note or today's note immediately.

zsh/zsh_functions

@@ -17,8 +17,12 @@ function rmv() {
         find ./* -depth -type d -empty -exec rmdir "{}" \;
 }
 
-function new_note() {
-    nvim
+function note() {
+    nvim -c ":Telekasten new_note"
+}
+
+function today() {
+    nvim -c ":Telekasten goto_today"
 }
 
 function path() {