tests: add --testrunner flag so that column tests dont fail on startup

We added a startup panic to prevent users from running as debug mode,
our tests are also hitting this. Add a new --testrunner flag which
skips this check. We want this separate from the --debug flag so that
the tests have a more consistent runtime environment.

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

crates/notedeck_chrome/src/app.rs

@@ -55,7 +55,7 @@ impl Notedeck {
             .unwrap_or(notedeck::ui::is_compiled_as_mobile());
 
         // Some people have been running notedeck in debug, let's catch that!
-        if !cfg!(test) && cfg!(debug_assertions) && !parsed_args.debug {
+        if !parsed_args.tests && cfg!(debug_assertions) && !parsed_args.debug {
             println!("--- WELCOME TO DAMUS NOTEDECK! ---");
             println!("It looks like are running notedeck in debug mode, unless you are a developer, this is not likely what you want.");
             println!("If you are a developer, run `cargo run -- --debug` to skip this message.");

crates/notedeck_chrome/src/notedeck.rs

@@ -130,6 +130,7 @@ mod tests {
         let datapath = create_tmp_dir();
         let dbpath = create_tmp_dir();
         let args: Vec<String> = vec![
+            "--testrunner",
             "--datapath",
             &datapath.to_str().unwrap(),
             "--dbpath",
@@ -155,6 +156,7 @@ mod tests {
         let tmpdir = create_tmp_dir();
         let npub = "npub1xtscya34g58tk0z605fvr788k263gsu6cy9x0mhnm87echrgufzsevkk5s";
         let args: Vec<String> = vec![
+            "--testrunner",
             "--no-keystore",
             "--pub",
             npub,