refactor MonthCountSelector to tsx

[Jod929]

Refactor MonthCountSelector to TSX. This is in relation to issue #1483

This is my first contribution so please let me know if there is something I am missing or can do better

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Bundle Stats — desktop-client

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Total

Files count	Total bundle size	% Changed
14	2.13 MB	0%

Changeset

File	Δ	Size
src/components/budget/MonthCountSelector.tsx	🆕 +1.01 kB	0 B → 1.01 kB
src/components/budget/MonthCountSelector.js	🔥 -1.01 kB (-100%)	1.01 kB → 0 B

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Asset	File Size	% Changed
static/js/main.js	967.25 kB	0%
static/js/171.chunk.js	396.24 kB	0%
static/media/Inter-italic.var.woff2	239.29 kB	0%
static/media/Inter-roman.var.woff2	221.86 kB	0%
static/js/wide-components.chunk.js	137.22 kB	0%
static/js/383.chunk.js	117.35 kB	0%
static/js/reports.chunk.js	40.59 kB	0%
static/js/narrow-components.chunk.js	25.19 kB	0%
static/js/969.chunk.js	12.94 kB	0%
static/js/resize-observer-polyfill.chunk.js	8.12 kB	0%
static/css/main.css	5.82 kB	0%
asset-manifest.json	1.78 kB	0%
index.html	1.66 kB	0%
static/media/browser-server.js	963 B	0%

[github-actions]

Bundle Stats — loot-core

Hey there, this message comes from a GitHub action that helps you and reviewers to understand how these changes affect the size of this project's bundle.

As this PR is updated, I'll keep you updated on how the bundle size is impacted.

Total

Files count	Total bundle size	% Changed
2	1.97 MB	0%

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No files were changed

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Asset	File Size	% Changed
kcab.worker.js	1013.13 kB	0%
xfo.xfo.kcab.worker.js	1004.04 kB	0%