File browser: Improve readability of file browser by displaying file description less prominent

### ⚠️ This issue respects the following points: ⚠️

- [X] This is a **enhancement/feature request**. Not a [bug or question](https://github.com/gsantner/markor/issues/new/choose).
- [X] The topic is **not** already reported at [Issues](https://github.com/gsantner/markor/issues?q=#js-issues-search). _(I've searched it)_.
- [X] Markor **is** up to date. See [Releases](https://github.com/gsantner/markor/tags) for the latest version. Updates are available from [F-Droid](https://f-droid.org/en/packages/net.gsantner.markor/) and GitHub.
- [X] The wanted feature/enhancement is not present in the latest development version (git master). (Please [download](https://nightly.link/gsantner/markor/workflows/build-android-project/master) and try the test version of Markor, named **Marder**. Don't worry; Markor and Marder appear as completely separate applications. You can install both side-by-side, and Markor's settings are not touched. If your desired feature is present, you don't need to open this issue. The change will be part of the next Markor update.)

### Description

I have a lot of folders and files in my Notebook, and I find navigation a bit hard because the file description is displayed so prominently. 99% of the time I'm only interested in the file name. Ideas to improve readability:

- Add an option to right align the file description
- Make the file description use less vertical space. Right now it looks like file name and file description share an equal amount of vertical space (including the padding), although the file name uses a slightly bigger font and is more bright and bold.
- Option to adjust the color of the file description (to be able to lower the contrast to background color).

**Semi-Workaround**:

Manual indentation using spaces:


I have looked at the `SimpleDateFormat` docs but it looks like alignment cannot be set from within the date and time pattern strings (which is probably good).

### Information

Android version: 14 (GrapheneOS)
Device: Pixel 8
App Version: 2.11.1 (F-Droid says 2.11.1 but it looks like the latest release is only 2.11.0?)

### Source

F-Droid

### Format / File type

Not specific

### Additional info / Log

_No response_