When launching the script, actually source the right things.

If I try to launch it via
~/projects/audiogame-manager/audiogame-manager.sh it will crap out
because it isn't able to source its include files; it erroneously
thinks they're in the current directory as I am, which is no exactly
true unless I physically go to the audiogame manager directory. This
also fixes launching from the desktop icon.

audiogame-manager.sh

@@ -235,7 +235,7 @@ game_installer() {
 
 # remove games
 game_removal() {
-    source .includes/bottle.sh
+    source "${scriptDir}/.includes/bottle.sh"
     # Modern wine is unified - no architecture-specific wine executables needed
     mapfile -t lines < <(sed -e '/^$/d' -e '/^[[:space:]]*#/d' "${configFile}" 2> /dev/null)
     if [[ ${#lines} -eq 0 ]]; then
@@ -273,7 +273,7 @@ game_removal() {
         create_game_array "$selectedGame"
         if [[ ${#game[@]} -gt 0 ]]; then
             # Set up wine environment for this game
-            source .includes/bottle.sh
+            source "${scriptDir}/.includes/bottle.sh"
             get_bottle "${game[0]}"
             
             if ! agm_yesno "Confirm Removal" "Audio Game Removal" "Are you sure you want to remove \"${game[2]}\"?"; then
@@ -303,7 +303,7 @@ game_removal() {
 
 # kill games that are stuck
 kill_game() {
-    source .includes/bottle.sh
+    source "${scriptDir}/.includes/bottle.sh"
     # Modern wine is unified - no architecture-specific wine executables needed
     mapfile -t lines < <(sed '/^$/d' "${configFile}" 2> /dev/null)
     if [[ ${#lines} -eq 0 ]]; then
@@ -447,7 +447,7 @@ create_game_array() {
 # Update NVDA controller client DLLs in wine bottles
 update_nvda_dlls() {
     # Ensure we have the replacement DLLs
-    source .includes/functions.sh
+    source "${scriptDir}/.includes/functions.sh"
     download "${nvdaControllerClientDll}" "${nvdaControllerClient64Dll}"
     
     # Update wine64 bottle (most common)
@@ -493,7 +493,7 @@ update_nvda_dlls() {
 game_launcher() {
     # For use by update scripts that want to source functions in this file.
     [[ "$agmNoLaunch" == "true" ]] && return
-    source .includes/bottle.sh
+    source "${scriptDir}/.includes/bottle.sh"
     
     # Start nvda2speechd if available
     if [[ -x ${XDG_DATA_HOME:-$HOME/.local/share}/audiogame-manager/nvda2speechd ]]; then
@@ -522,7 +522,7 @@ game_launcher() {
         if [[ $menuCode -eq 1 ]] || [[ $menuCode -eq 255 ]]; then
             exit 0
         elif [[ $menuCode -eq 3 ]]; then
-            source .includes/help.sh # Make available in this function
+            source "${scriptDir}/.includes/help.sh" # Make available in this function
             documentation "$game" "$(echo "$game" | cut -d '|' -f2)"
         fi
         
@@ -588,7 +588,7 @@ else
 fi
 
 # Source dialog interface early for progress display
-source .includes/dialog-interface.sh
+source "${scriptDir}/.includes/dialog-interface.sh"
 
 # If display isn't set assume we are launching from console and an X environment is running using display :0
 if [[ -z "$DISPLAY" ]]; then
@@ -633,12 +633,12 @@ export nvda2speechdBinary="${ipfsGateway}/ipfs/QmPxhoNsoFoJC7bCfioBBCcK8tEoSoYpm
 
 
 # Source helper functions
-source .includes/bottle.sh # Also sourced in functions that need it
-source .includes/desktop.sh
+source "${scriptDir}/.includes/bottle.sh" # Also sourced in functions that need it
+source "${scriptDir}/.includes/desktop.sh"
 # dialog-interface.sh already sourced earlier
-source .includes/functions.sh
-source .includes/help.sh
-source .includes/update.sh
+source "${scriptDir}/.includes/functions.sh"
+source "${scriptDir}/.includes/help.sh"
+source "${scriptDir}/.includes/update.sh"
 
 # Check minimum requirements
 check_requirements || exit 1
@@ -685,7 +685,7 @@ args="${!command[*]}"
 args="${args//[[:space:]]/}"
 while getopts "${args}" i ; do
     case "$i" in
-        c) ./.includes/checkup.sh;;
+        c) "${scriptDir}/.includes/checkup.sh";;
         C) clear_cache;;
         D) desktop_launcher;;
         d)
@@ -711,7 +711,7 @@ while getopts "${args}" i ; do
         r) game_removal;;
         S) defaultRate="${OPTARG}";;
         t)
-            gameCount=$(find ".install" -type f -iname "*.sh" | wc -l)
+            gameCount=$(find "${scriptDir}/.install" -type f -iname "*.sh" | wc -l)
             agm_infobox "Linux Game Manager" "Linux Game Manager" "There are currently ${gameCount} games available."
             exit 0
         ;;
@@ -729,9 +729,9 @@ if [[ "$noninteractiveInstall" == "true" ]]; then
     [[ ${#game} -lt 1 ]] && exit 0
 
     # Install the specified game noninteractively
-    if [[ -f ".install/${game}.sh" ]]; then
+    if [[ -f "${scriptDir}/.install/${game}.sh" ]]; then
         export LANG="en_US.UTF-8"
-        . ".install/${game}.sh"
+        . "${scriptDir}/.install/${game}.sh"
         # Show success message
         agm_msgbox "Installation Complete" "Audio Game Installer" "Game \"${game}\" has been successfully installed."
     else