Add flag to emulate mobile during preview

Since the is_mobile check was moved to compile-time instead of runtime
in 0a6a441041, we need a way to override
the check when previewing using the 'mobile' flag.

Signed-off-by: kernelkind <kernelkind@gmail.com>
Signed-off-by: William Casarin <jb55@jb55.com>

preview

@@ -1,2 +1,20 @@
 #!/usr/bin/env bash
-cargo run --bin ui_preview --release -- "$@"
+
+MOBILE_FLAG=0
+FILTERED_ARGS=()
+
+# Loop through the command line arguments
+for arg in "$@"; do
+    if [[ "$arg" == "--mobile" ]]; then
+        MOBILE_FLAG=1
+    else
+        # Add non '--mobile' arguments to the filtered list
+        FILTERED_ARGS+=("$arg")
+    fi
+done
+
+if [[ "$MOBILE_FLAG" -eq 1 ]]; then
+    cargo run --bin ui_preview --features emulate_mobile --release -- "${FILTERED_ARGS[@]}"
+else
+    cargo run --bin ui_preview --release -- "$@"
+fi