Deploy helper files on finit and update

Add Citra mod helper file

emu-configs/defaults/retrodeck/helper_files/how-to-install-citra-mods.txt

@@ -0,0 +1,19 @@
+There are two ways of adding mods into Citra
+
+From Citra
+- Extract any mod from compressed .zip or any other format to folders.
+- Open up Citra inside RetroDECK Configurator by pressing Open Emulator - Citra.
+- Right click on the game you want to add mods into.
+- Click on Open Mods Location.
+- Paste the mod files inside that directory, each folder is stored by the TITLLEID of the game.
+- Quit Citra
+
+From the mod folder directly
+- Extract any mod files from compressed .zip or any other format into folders.
+- Go into ~/retrodeck/mods/citra/. The folders are all named by TITLEID.
+- Past the mods into the right ~/retrodeck/mods/yuzu/<TITLEID> folder.
+
+Related wiki article can be found here:
+https://github.com/XargonWan/RetroDECK/wiki/Citra%3A-Mods#citra---3ds
+
+The RetroDECK Team

emu-configs/defaults/retrodeck/reference_lists/helper_files_list.cfg

@@ -2,4 +2,4 @@
 # FILE NAME^DESTINATION
 # The destination can be an internal variable name like $roms_folder if needed
 # The FILE name can have spaces in it, but the DESTINATION cannot, even in variable form
-RetroDECK Example Readme.txt^$rdhome
+how-to-install-citra-mods.txt^$mods_folder/Citra

functions/functions.sh

@@ -422,6 +422,7 @@ finit() {
   (
   prepare_emulator "reset" "all"
   build_retrodeck_current_presets
+  deploy_helper_files
   
   # Optional actions based on user choices
   if [[ "$finit_options_choices" =~ (rpcs3_firmware|Enable All) ]]; then

functions/post_update.sh

@@ -244,6 +244,7 @@ post_update() {
   fi
 
   update_splashscreens
+  deploy_helper_files
   build_retrodeck_current_presets
   ) |
   zenity --icon-name=net.retrodeck.retrodeck --progress --no-cancel --pulsate --auto-close \