Dropped AI integration, inline diagnostics, orgmode completion

Keymaps:

- key binding for viewing git log of current file: <space>=l
- blink keybindings simplified, added orgmode as source

Plugins:
- folke todo comments disabled
- dropped all AI integration
- added tiny-inline-diagnostic for easier and(!) wrapped diagnostic
  messages
- added sqlua.ncim plugin to connect to SQL databases

lua/lsp.lua

@@ -34,6 +34,7 @@ vim.api.nvim_create_autocmd('LspAttach', {
     vim.keymap.set('n', '<space>]', vim.diagnostic.goto_next, { desc = "Previous diagnostics" })
 
     local gitsigns = require('gitsigns')
+    vim.keymap.set('n', '<space>=l', ":NeogitLogCurrent<CR>", { desc = "Neogit: log for this file" })
     vim.keymap.set('n', '<space>==', gitsigns.preview_hunk_inline, { desc = "Git hunk preview" })
     vim.keymap.set('n', '<space>=B', gitsigns.blame, { desc = "Git blame file" })
     vim.keymap.set('n', '<space>=D', function() gitsigns.diffthis('~') end, { desc = "Git diff this (~)" })