used platform files for platform specfic code

Author: ishpaul777

src/libs/getSplashBackgroundColor/index.native.ts

@@ -0,0 +1,7 @@
+import colors from '@styles/theme/colors';
+
+function getSplashBackgroundColor() {
+    return colors.green400;
+}
+
+export default getSplashBackgroundColor;

src/libs/getSplashBackgroundColor/index.ts

@@ -0,0 +1,7 @@
+import colors from '@styles/theme/colors';
+
+function getSplashBackgroundColor() {
+    return colors.productDark100;
+}
+
+export default getSplashBackgroundColor;

src/styles/theme/themes/dark.ts

@@ -1,15 +1,13 @@
-import getPlatform from '@libs/getPlatform';
+import getSplashBackgroundColor from '@libs/getSplashBackgroundColor';
 import colors from '@styles/theme/colors';
 import type {ThemeColors} from '@styles/theme/types';
 import CONST from '@src/CONST';
 import SCREENS from '@src/SCREENS';
 
-const platform = getPlatform();
-
 const darkTheme = {
     // Figma keys
     appBG: colors.productDark100,
-    splashBG: platform === CONST.PLATFORM.WEB || platform === CONST.PLATFORM.IOS ? colors.productDark100 : colors.green400,
+    splashBG: getSplashBackgroundColor(),
     highlightBG: colors.productDark200,
     border: colors.productDark400,
     borderLighter: colors.productDark400,

src/styles/theme/themes/light.ts

@@ -1,15 +1,13 @@
-import getPlatform from '@libs/getPlatform';
+import getSplashBackgroundColor from '@libs/getSplashBackgroundColor';
 import colors from '@styles/theme/colors';
 import type {ThemeColors} from '@styles/theme/types';
 import CONST from '@src/CONST';
 import SCREENS from '@src/SCREENS';
 
-const platform = getPlatform();
-
 const lightTheme = {
     // Figma keys
     appBG: colors.productLight100,
-    splashBG: platform === CONST.PLATFORM.WEB || platform === CONST.PLATFORM.DESKTOP ? colors.productDark100 : colors.green400,
+    splashBG: getSplashBackgroundColor(),
     highlightBG: colors.productLight200,
     border: colors.productLight400,
     borderLighter: colors.productLight400,