improved cleanup and raspbian support

spells/menu/bitcoin/install-bitcoin

@@ -1,7 +1,7 @@
 #!/bin/sh
 
 # Set Bitcoin version
-BITCOIN_VERSION="25.0"
+BITCOIN_VERSION="0.21.1"
 
 # Function to get Bitcoin binary based on architecture
 get_bitcoin_binary() {
@@ -25,6 +25,9 @@ get_bitcoin_binary() {
 
 # Function to install Bitcoin from source
 install_bitcoin_from_source() {
+    tmp_dir="/tmp/bitcoin-install-$(date +%s)"
+    mkdir -p "$tmp_dir"
+    cd "$tmp_dir" || exit 1
     wget https://bitcoincore.org/bin/bitcoin-core-$BITCOIN_VERSION/bitcoin-$BITCOIN_VERSION.tar.gz 
     tar -xvf bitcoin-$BITCOIN_VERSION.tar.gz
     cd bitcoin-$BITCOIN_VERSION || exit 1
@@ -35,7 +38,8 @@ install_bitcoin_from_source() {
         return 1
     fi
     sudo make install
-    cd .. || exit 1
+    cd ../.. || exit 1
+    rm -rf "$tmp_dir"
     return 0
 }
 
@@ -56,10 +60,14 @@ install_bitcoin_binary() {
 
 # Function to install Bitcoin for macOS
 install_bitcoin_macos() {
+    tmp_dir="/tmp/bitcoin-install-$(date +%s)"
+    mkdir -p "$tmp_dir"
+    cd "$tmp_dir" || exit 1
     wget https://bitcoincore.org/bin/bitcoin-core-$BITCOIN_VERSION/bitcoin-$BITCOIN_VERSION-osx64.tar.gz
     tar -xzf bitcoin-$BITCOIN_VERSION-osx64.tar.gz
     sudo mv bitcoin-$BITCOIN_VERSION/bin/* /usr/local/bin/
-    rm -rf bitcoin-$BITCOIN_VERSION-osx64.tar.gz bitcoin-$BITCOIN_VERSION
+    cd - || exit 1
+    rm -rf "$tmp_dir"
     echo "Bitcoin Core version $BITCOIN_VERSION has been installed successfully on macOS."
 }
 
@@ -70,8 +78,13 @@ install_bitcoin() {
             install_bitcoin_macos
             ;;
         Linux)
-            if ! install_bitcoin_from_source; then
+            # If the operating system is Raspbian, we will skip compiling from source and go directly to binary installation.
+            if grep -q 'Raspbian' /etc/os-release; then
                 install_bitcoin_binary
+            else
+                if ! install_bitcoin_from_source; then
+                    install_bitcoin_binary
+                fi
             fi
             ;;
         *)