[APP-835] trim end of email during login (#1242)

* trim end of email during login

* Switch trimEnd() to trim()

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Co-authored-by: Paul Frazee <[e-mail]>

src/view/com/auth/login/Login.tsx

···
             blurOnSubmit={false} // prevents flickering due to onSubmitEditing going to next field
             keyboardAppearance={theme.colorScheme}
             value={identifier}
-            onChangeText={str => setIdentifier((str || '').toLowerCase())}
+            onChangeText={str =>
+              setIdentifier((str || '').toLowerCase().trim())
+            }
             editable={!isProcessing}
             accessibilityLabel="Username or email address"
             accessibilityHint="Input the username or email address you used at signup"