feat: add config option for custom watch folders (#13881)

* feat: add config option for custom watch folders

* fix: cargo clippy changes

* chore: remove file

* fix: ios dev

* docs: clarify absolute allowed

* refactor: rename variable

* fix: review suggestions

* fix: resolve paths

* fixL use canonicalize

* chore: add changefile

* chore: add error if cant canonicalize

* reformat changelog

* Update .changes/additional-watch-folders.md

* Update crates/tauri-cli/src/interface/rust.rs

Co-authored-by: Tony <68118705+Legend-Master@users.noreply.github.com>

* Revert "Update .changes/additional-watch-folders.md"

This reverts commit 98186b1a89a52f5f3ba5f305402299ee5b3f53ef.

* Also bump `@tauri-apps/cli`

* Apparently I'm so used to a higher rust version

* Revert "Apparently I'm so used to a higher rust version"

This reverts commit ea1d89e2d377831ca93cf291880a179392d9f066.

* Need to check for existence for abs paths as well

---------

Co-authored-by: Tony <68118705+Legend-Master@users.noreply.github.com>
Co-authored-by: Tony <legendmastertony@gmail.com>