Remove unused initial value in Writer/File.ts writeImplementation

[Copilot]

Addresses code review feedback on #10 regarding an unused initial value in the writeImplementation method.

Changes

• Removed unused initial true value from result variable in Writer/File.ts:40
• Changed declaration from let result = true to let result: boolean

The initial value was unnecessary since result is always assigned in both the try block (r.bytesWritten == content.length) and catch block (false) before being read.

// Before
let result = true
const content = Buffer.from(buffer.reduce((r, item) => r + item, ""))
try {
  const r = await fs.write(this.descriptor, content, 0, content.length)
  result = r.bytesWritten == content.length
} catch {
  result = false
}

// After
let result: boolean
const content = Buffer.from(buffer.reduce((r, item) => r + item, ""))
try {
  const r = await fs.write(this.descriptor, content, 0, content.length)
  result = r.bytesWritten == content.length
} catch {
  result = false
}

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