refactor: optimize Matcher algorithm

[qwqcode]

The PR included:

Separation of Concerns

• Isolated the algorithm logic layer from the view layer by no longer using the MatchItem from the SubRenamer.Model namespace in the view layer.
• Before calling the Execute function, the view layer's MatchItem is converted to the algorithm layer's MatchItem using MatcherDataConverter.ConvertMatchItems. After execution, the returned MatchItem is converted back to the view layer's format.

Use of Records:

• Replaced classes with C# 9.0 Records for MatchItem and DiffResult data structures. This change emphasizes immutability, making testing easier.

Function Behavior:

• Some functions now do not modify the input List in place. Instead, they return a new List copy. The input is defined as an immutable IReadOnlyList, promoting idempotency and simplifying testing.

Diff Result Calculation:

• The GetDiffResult method has been modified to use a double loop, where i and j approach from both ends towards the center. It prioritizes matching the first and last items instead of adjacent ones. This aims to prevent incorrect DiffResult prefixes and suffixes when multiple identical filenames in different languages are encountered.

Improvements to FindCommonSuffix:

• The input value Prefix has been removed from FindCommonSuffix.
• The algorithm has been improved to use a two-pointer approach to skip over non-matching characters.

Type and Variable Modifications:

• Various types have been modified, and some variable names have been renamed for clarity.