hardcode hostname to localhost for desktop installs

Signed-off-by: Tommy <contact@tommytran.io>

install.sh

@@ -94,6 +94,7 @@ user_password_prompt () {
 }
 
 hostname_prompt (){
+    if [ "${install_mode}" = 'server' ]; then
         output 'Enter your hostname:'
         read -r hostname
 
@@ -101,6 +102,9 @@ hostname_prompt (){
             output 'You need to enter a hostname.'
             hostname_prompt
         fi
+    else
+        hostname='localhost'
+    fi
 }
 
 # Set hardcoded variables (temporary, these will be replaced by future prompts)