[Feature] Standard alphabet casing

[infinotiver]

Describe the problem this feature would solve

Describe the solution

Currently, in various places on the app ui, different and non uniform casing is used (AABB, aabb, Aabb etc...) . While this won't cause a very large problem, in terms of functionality, It is still recommended to use an uniform case as it enhances UI & UX ( examples of non uniformity given below )

due to security reasons, and blockages I couldn't provide screenshots of every instance,

• (Accounts page) Top right bar, Categories & Filters , lock app, Reload datafile
• (About the app) Show source code of the app, rate the app .... As seen above, there is irregularity in the casing, some are in Sentence case, others being in lower case etc..

[jp-weber]

Implemented in v.1.2.9: https://github.com/2fast-team/2fast/releases/tag/v1.2.9