MM-19696 Added font color for GlobalStyle Input (#3536)

Added the default color #3d3c40 for the GlobalStyle Input that the Server select and Login screen used for style.

app/screens/forgot_password/__snapshots__/forgot_password.test.js.snap

@@ -151,6 +151,7 @@ exports[`ForgotPassword should match snapshot 1`] = `
               "borderColor": "gainsboro",
               "borderRadius": 3,
               "borderWidth": 1,
+              "color": "#3d3c40",
               "fontSize": 16,
               "height": 45,
               "marginBottom": 5,
@@ -262,6 +263,7 @@ exports[`ForgotPassword snapshot for error on failure of email regex 1`] = `
               "borderColor": "gainsboro",
               "borderRadius": 3,
               "borderWidth": 1,
+              "color": "#3d3c40",
               "fontSize": 16,
               "height": 45,
               "marginBottom": 5,

app/styles/index.js

@@ -110,5 +110,6 @@ export const GlobalStyles = StyleSheet.create({
         paddingLeft: 10,
         alignSelf: 'stretch',
         borderRadius: 3,
+        color: '#3d3c40',
     },
 });