Make debugging in Neovim great again

This is just a maintenance release w/ regular housekeeping and bug fixes. But there's one thing I want to mention here - improved debugging experience. (We assume you have already read and understood :h dap.txt).

• We now support integrated terminals right inside neovim! This addresses many previous issues like #416, #440, and #592. To use the terminal, move your cursor to the buffer named [dap-terminal] <profile-name> (bottom left corner), enter insert mode and use that like a normal terminal (stdin and stdout are connected to that buffer if supported).
  • Note that since delve currently does NOT support IO redirection, Go programs need to be explicitly attached to an external debugger to directly interact with delve. (Details: mfussenegger/nvim-dap#987)
• While debugging, K (responsible for require('dapui').eval(), evaluate expression under cursor/selection) is set as a session-local keymap (mode: n|v) when a session initiates.
• There's a new entry in settings.lua, namely dap_deps. This is almost similar to the two above, mainly providing a centralized place to manage your debug adaptors (clients). They'll be installed and configured during bootstrap (unless the corresponding user config, with the same name, is provided in modules/configs/tool/dap/clients/). Refer to the following for more information.
• Users may supply their customized configurations in modules/configs/tool/dap/clients/. The fname *.lua MUST match the name in settings.lua. Check this link for all supported DAPs, and take a look at other files in this folder for examples.
  • Caveat: To set up your clients correctly, you should at least understand :h dap.txt or things may work in unexpected ways. Simply copying other configs is usually not enough.
• Since configuring dap requires non-trivial amount of work, we wrote several setups (for C-family languages, Go and Python) that work out-of-the-box and should cover most use cases. If you have any questions regarding setting up your debug client, feel free to open an issue for this.

Miscallaneous
^{Due to the rapid plugin iterations, these changes are made. Refer to upstream CHANGELOGs for more information.}

• Due to upstream policy changes, please make sure you have a Rust Toolchain installed via rustup. Otherwise, unexpected things may happen. More info: https://www.rust-lang.org/tools/install.
• There's a new usercmd :NullLsToggle to toggle Null-ls sources (Similar to LspStop/LspStart).
• Fixed input delay while typing (cmp-related issue).

Have a look at the "What's Changed" section for minor fixes.

What's Changed

• chore(assets): put dots.tutor under the rtp by @Jint-lzxy in #837
• feat(catppuccin): add nvim-treehopper support by @Jint-lzxy in #841
• workaround(lsp-signature)!: fix input delay of nvim-cmp by @Jint-lzxy in #840
• perf(lualine): more efficient has_git checks by @Jint-lzxy in #838
• fix(ui): sync lazy's colorscheme with settings. by @ayamir in #849
• chore(plugins): update plugins with maintained fork. by @ayamir in #848
• migrate: install rustfmt from rustup (#842) by @CharlesChiuGit in #845
• fix(null-ls): specify rustfmt manually by @Jint-lzxy in #852
• feat(catppuccin): use upstream nvchad style by @nullchilly in #855
• feat(lspsaga): support v0.3 by @Jint-lzxy in #857
• feat(ui)!: improve user experience wrt transparent bg by @Jint-lzxy in #865
• perf!: consolidated updates to address performance issues by @Jint-lzxy in #868
• perf(pack): update nvim-bufdel lazy-loading events. by @CharlesChiuGit in #874
• feat(null-ls): usercmd :NullLsToggle to toggle sources by @Jint-lzxy in #872
• feat(lspsaga): enable titles for Nvim >=0.9 by @Jint-lzxy in #875
• fix(lspkind): TypeParams shall be colors.blue (FNC) by @Jint-lzxy in #883
• chore(treesitter): cleanup by @Jint-lzxy in #891
• perf(lsp_signature): fix input delay by @Jint-lzxy in #890
• feat(lualine): add icon for PyEnv by @Jint-lzxy in #892
• fix(provider): leave provider specifications to user by @misumisumi in #887
• perf(lspsaga): align options with official doc and update config by @CharlesChiuGit in #898
• feat(dap)!: support integrated terminals (io in neovim) by @Jint-lzxy in #877
• fix(dap-keymap): properly create and destroy keymaps by @Jint-lzxy in #902
• fix(dap-keymap): simplify keymap implementation by @Jint-lzxy in #905

New Contributors

• @nullchilly made their first contribution in #855
• @misumisumi made their first contribution in #887

Full Changelog: v3.1.0...v3.2.0