lineage-sdk: Introduce /e/ UI changes

Change-Id: I7595a2a66dc46298a1b696449d2ac5e952f7aead

Add mail related icons

3654-R-color_code_for_view_on_accent

[R] update dark mode colors

adding color value

3942-R-revert_back_text_colors

issue: e/backlog#3942

4969-R-Add_missing_colors

4969-R-Fix_color_code_mismatch_issue

271-q-Update_light_accent_color

issue: https://gitlab.e.foundation/e/os/backlog/-/issues/271