[FIX] Messagebox missing style for text color (#2786)

* Changing auxilaryTintColor

* Changed Placeholder color to BodyText color

* added color prop

* eslint changes

* used array for styles

Co-authored-by: Diego Mello <diegolmello@gmail.com>

app/containers/MessageBox/index.js

@@ -936,7 +936,7 @@ class MessageBox extends Component {
 				/>
 				<TextInput
 					ref={component => this.component = component}
-					style={styles.textBoxInput}
+					style={[styles.textBoxInput, { color: themes[theme].bodyText }]}
 					returnKeyType='default'
 					keyboardType='twitter'
 					blurOnSubmit={false}