Fix: Simplify input prompts in setup script

Reverts input functions to a simpler model by separating the
`echo` of the prompt from the `read` command itself.
This avoids using `read -p` with complex, colorized prompt strings,
which can sometimes cause issues in specific terminal emulators or
compatibility layers like those found in MobaXterm.

This change aims to improve robustness of input handling by:
1. Using `echo -e -n` for displaying the prompt with colors.
2. Using a plain `read` or `read -s` for capturing user input.

This is a further attempt to resolve issues where users might be
unable to type or paste into prompts within the MobaXterm environment.

ultroid_setup.sh

@@ -77,36 +77,17 @@ _prompt_user() {
     local prompt_message="$1"
     local var_name="$2"
     local default_value="${3:-}"
-    local current_value="${!var_name:-$default_value}" # Not used currently, but good for reference
     local input
 
-    local read_target_set_internally=false
-    # Check if stdin (fd 0) is a terminal
-    if ! [ -t 0 ]; then
-        # If stdin is not a terminal, check if /dev/tty is available
-        if [ -c /dev/tty ]; then
-            read_target_set_internally=true
-        else
-            _print_msg error "Cannot read user input: No TTY available. stdin is not a terminal and /dev/tty is not accessible."
-            # Exiting because user input is critical for this script.
-            # Alternatively, could return an error code: return 1
-            exit 1
-        fi
+    # Echo the prompt using color codes
+    if [ -n "$default_value" ]; then
+        echo -e -n "${YELLOW}${prompt_message}${NC} [Default: $default_value]: "
+    else
+        echo -e -n "${YELLOW}${prompt_message}${NC}: "
     fi
 
-    if [ -n "$default_value" ]; then
-        if $read_target_set_internally; then
-            read -p "$(echo -e "${YELLOW}$prompt_message${NC} [Default: $default_value]: ")" input < /dev/tty
-        else
-            read -p "$(echo -e "${YELLOW}$prompt_message${NC} [Default: $default_value]: ")" input
-        fi
-    else
-        if $read_target_set_internally; then
-            read -p "$(echo -e "${YELLOW}$prompt_message${NC}: ")" input < /dev/tty
-        else
-            read -p "$(echo -e "${YELLOW}$prompt_message${NC}: ")" input
-        fi
-    fi
+    # Read the input
+    read input
 
     if [ -z "$input" ] && [ -n "$default_value" ]; then
         eval "$var_name=\"$default_value\""
@@ -120,26 +101,13 @@ _prompt_user_sensitive() {
     local var_name="$2"
     local input
 
-    local read_target_set_internally=false
-    # Check if stdin (fd 0) is a terminal
-    if ! [ -t 0 ]; then
-        # If stdin is not a terminal, check if /dev/tty is available
-        if [ -c /dev/tty ]; then
-            read_target_set_internally=true
-        else
-            _print_msg error "Cannot read sensitive user input: No TTY available. stdin is not a terminal and /dev/tty is not accessible."
-            # Exiting because user input is critical for this script.
-            # Alternatively, could return an error code: return 1
-            exit 1
-        fi
-    fi
+    # Echo the prompt using color codes
+    echo -e -n "${YELLOW}${prompt_message}${NC}: "
 
-    if $read_target_set_internally; then
-        read -sp "$(echo -e "${YELLOW}$prompt_message${NC}: ")" input < /dev/tty
-    else
-        read -sp "$(echo -e "${YELLOW}$prompt_message${NC}: ")" input
-    fi
+    # Read the input silently
+    read -s input
     echo # Newline after sensitive input
+
     eval "$var_name=\"$input\""
 }