Changed . token to _dot

This change allows the dotfiles to work with chezmoi (e.g: on windows)
and improves grepability with neovim/telescope

dot_config/nushell/nu_scripts/modules/fuzzy/README.md

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+# Fuzzy all the things
+
+### Purpose
+
+This contains a few scripts that add fuzzy search interfaces to built-in nu functionalities. Often you
+want to search commands/your history interactively, which is where [fzf](https://github.com/junegunn/fzf) excels at.
+
+
+### How to use
+
+`./fuzzy_history_search.nu` searches your command history and, after pressing `enter`, copies the selected command into the clipboard
+`./fuzzy_command_search.nu` searches both commands and subcommands for both a) names and b) their description, and, after pressing `enter`, copies the selected command into the clipboard
+
+To use them in your day-to-day workflow, add 
+
+```
+source <absolute-path-to-nu_scripts>/fuzzy/fuzzy_history_search.nu
+source <absolute-path-to-nu_scripts>/fuzzy/fuzzy_command_search.nu
+```
+
+to your `config.nu` 
+
+It's likely a good idea to  also add some short and sweet aliases, e.g.
+
+```
+alias hi = fuzzy-history-search
+alias hf = fuzzy-command-search
+```

dot_config/nushell/nu_scripts/modules/fuzzy/fuzzy_command_search.nu

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+const tablen = 8
+
+# calculate required tabs/spaces to get a nicely aligned table
+def pad-tabs [input_name max_indent] {
+    let input_length = ($input_name | str length) 
+    let required_tabs = $max_indent - ($input_length / $tablen | into int)
+    seq 0 $required_tabs | reduce -f "" {|it, acc| $acc + (char tab)}
+}
+
+# fuzzy search a) commands b) subcommands
+# on selection, will display `help` for the commands
+# and paste command into clipboard for you to paste right away
+
+
+export def fuzzy-command-search [] {
+    let max_len = (help commands | each { $in.name | str length } | math max)
+    let max_indent = ($max_len / $tablen | into int)
+    let command = ((help commands | each {|it|
+        let name = ($it.name | str trim | ansi strip)
+        $"($name)(pad-tabs $name $max_indent)($it.usage)"
+    }) | str join (char nl) | fzf | split column (char tab) | get column1.0)
+    if ($command | is-not-empty) {
+        help $command
+    }
+}

dot_config/nushell/nu_scripts/modules/fuzzy/fuzzy_history_search.nu

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+export def fuzzy-history-search [] { cat $nu.history-path | fzf | clip }