Made clarity changes to exclude dialog

[VandalByte]

Description

This PR adds more clarity to the exclude dialog by specifying that exclusion uses file name pattern matching (fnmatch) by default. It also updates the title to "Exclude Files and Folders" for better user understanding.

Related Issue

Resolves #2104

How Has This Been Tested?

Tested the UI by running the build

Screenshots:

Previous

New

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• I have read the CONTRIBUTING guide.
• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have added tests to cover my changes.
• All new and existing tests passed.

I provide my contribution under the terms of the license of this repository and I affirm the Developer Certificate of Origin.

[m3nu]

I'm not sure the new tab title is the most descriptive. Since the other tabs also exclude files and folders.

I don't have a better suggestion right now, but maybe all the tab titles should be considered in their context.

[VandalByte]

@m3nu
Some other titles I can think of is Custom Exclusions, Exclude Patterns, Manual Exclusions, Pattern or just keep it as Custom with only the description change as suggested by goebbe

[m3nu]

I'd use "Exclude Patterns". Since they aren't individual files and folders only. It also fits the text description below.

[VandalByte]

I'd use "Exclude Patterns". Since they aren't individual files and folders only. It also fits the text description below.

I have changed the title to Exclude Patterns, it does seem like the best option in this case.