List of issues found with dark mode

[nico3333fr]

Please centralize here issues found with Dark mode:

• [x] Dark mode Selector to enhance https://github.com/ProtonMail/proton-mail-settings/issues/259

• [x] Add a correct image for Dark Mode selector

• [x] Use a dark theme for Sieve editor

• [x] Inline SVG images for layout (or make theme dark mode friendly ?)

• [x] Disabled buttons design to enhance

[DeepSpaceHarbor]

• [x] Dark mode for payment method info

[DeepSpaceHarbor]

• [x] Enhance the design for switch

[DeepSpaceHarbor]

• [ ] The icons for the editor

[matej-n]

• [x] Folder/Labels suggestions when creating a filter