feat: colors update

Author: PavloNetrebchuk

core/src/openedx/org/openedx/core/ui/theme/Colors.kt

@@ -55,8 +55,8 @@ val light_success_green = Color(0xFF198571)
 val light_success_background = Color(0xFF0D7D4D)
 val light_dates_section_bar_past_due = light_warning
 val light_dates_section_bar_today = light_info
-val light_dates_section_bar_this_week = light_text_primary_variant
-val light_dates_section_bar_next_week = light_text_field_border
+val light_dates_section_bar_this_week = Color(0xFF3D4964)
+val light_dates_section_bar_next_week = Color(0xFF97A5BB)
 val light_dates_section_bar_upcoming = Color(0xFFCCD4E0)
 val light_auth_sso_success_background = light_secondary
 val light_auth_google_button_background = Color.White
@@ -131,9 +131,9 @@ val dark_success_green = Color(0xFF198571)
 val dark_success_background = Color.White
 val dark_dates_section_bar_past_due = dark_warning
 val dark_dates_section_bar_today = dark_info
-val dark_dates_section_bar_this_week = dark_text_primary_variant
-val dark_dates_section_bar_next_week = dark_text_field_border
-val dark_dates_section_bar_upcoming = Color(0xFFCCD4E0)
+val dark_dates_section_bar_this_week = Color(0xFF8E9BAE)
+val dark_dates_section_bar_next_week = Color(0xFF4E5A70)
+val dark_dates_section_bar_upcoming = Color(0xFF273346)
 val dark_auth_sso_success_background = dark_secondary
 val dark_auth_google_button_background = Color(0xFF19212F)
 val dark_auth_facebook_button_background = Color(0xFF0866FF)