fix(gen_lsp.lua): improve type name, and fix wrong type inheritance

Style improvements:

1. Anonymous classes derived from `StructureLiteralType` should have a
   better name. The class name can be also nested. Examples:

```diff
----@field serverInfo? anonym1
+---@field serverInfo? lsp._anonym1.serverInfo
```
```diff
----@field insertTextModeSupport? anonym26
+---@field insertTextModeSupport? lsp._anonym26.completionItem.insertTextModeSupport
```

2. Add one separate empty line before each `@field` definition. Without
   these, empty lines the doc can look confusing because descriptions
   also may contain empty lines. See `lsp.CompletionItem` for example:

```lua
---The kind of this completion item. Based of the kind
---an icon is chosen by the editor.
---@field kind? lsp.CompletionItemKind
---Tags for this completion item.
---
---@since 3.15.0
---@field tags? lsp.CompletionItemTag[]
```

   It might feel like "Tags for this completion item" belongs to `kind`,
   not `tags` due to the lack of separator blank lines. The following
   (after this commit) should look much better:

```diff
 ---The kind of this completion item. Based of the kind
 ---an icon is chosen by the editor.
 ---@field kind? lsp.CompletionItemKind
+---
 ---Tags for this completion item.
 ---
 ---@since 3.15.0
 ---@field tags? lsp.CompletionItemTag[]
```

3. Escape some LSP-specific annotations that can't be recognized by
   lua-ls. It'd be better to make them visible in LSP hover doc windows.

   Example: `@sample ...`.

Fixes:

1. A type may extend from more than one base types (as well as mixin
   types). Previously only the first base class was being considered,
   resulting incomplete base classes for `@class` definitions.

   Example: `InlayHintOptions` (should have both of `resolveProvider`
   and `workDoneProgress`, the latter is from `WorkDoneProgressOptions`)

```diff
----@class lsp.InlayHintOptions
+---@class lsp.InlayHintOptions: lsp.WorkDoneProgressOptions
```

2. Remove `<200b>` (zero-width space) unicode characters.

3. Add the missing newline at EOF.

0 files changed, 0 insertions, 0 deletions