fix: make android mocha tests run again

[m1ga]

I was wondering why the Android mocha tests weren't running anymore. Turns out: the generated tiapp.xml was invalid. There was a missing > and it had two <application> (we have a default one in the template now) nodes.

Fixing some tests:

• tls 1.3 url was not working. Using a different one
• redirect url was blocked, using a different one
• one test was throwing a "getText() of null" error for the label so I've added a null check: fix(android): missing null checks in Ti.UI.Label methods #14174
• headerTitle/footerTitle is not working (even with 12.5.0) so disabling that for the moment - Fixed in fix(android): fix global header/footer title in ListView #14160
• added another density image for the textfield padding test

Interesting point:
tableView.deleteRow(tableView.sections[0].rows[2]); is not working in the emulator but on a device it is working fine 🤷 That's one test that is still failing but couldn't fix it yet.

[m1ga]

@prashantsaini1 maybe you can check this one too. Then the testsuite will run again (npm run tests). One small null check in the SDK, the rest is just JS fixes.

Just a note: there are still around 10 tests that fail in the emulator, but the outher thousand of tests run fine 😄

[prashantsaini1]

This one's fine as I already noticed at other places that getNativeView is being used without null checks, whereas it should be guarded.

[hansemannn]

@prashantsaini1 Please review