Contrast Issues with Thunderbird Calendar in Latte Theme

## Description

When utilizing Catppuccin Latte as the theme in Thunderbird, two notable problems arise:

1. The dates displayed within the mini calendar are not visible due to insufficient colour contrast or poor colour choice.
2. Timestamps appearing on daily and weekly calendars lack clarity due to the same issue, making it difficult for users to discern their exact timing.


## Proposed Solution

Increasing the contrast of text in these specific locations, thus making it more legible.

No files or tests are named. Start by locating the Latte theme styles for the mini calendar and daily or weekly calendar timestamps, then inspect the affected colors against the screenshot. Done means the dates and timestamps are clearly legible in Thunderbird while retaining the Latte theme appearance.

Written by the indexing model from the issue text.