Pearl Boards Atlas Layout Additions (#20918)

* add matrix_diagram.md

* info.json: apply friendly formatting

* info.json: correct layout data

Moves the position representing the Rotary Encoder to the top of the layout.

* refactor keymaps

Applies the following changes to the `default` and `via` keymaps:

- four-space indent
- use of QMK-native keycode aliases
- numerically-indexed keymap layers
- updated grid alignment of keycodes

* add LAYOUT_ansi_blocker_tsangan_wkl_split_bs

* add LAYOUT_ansi_blocker_tsangan_wkl

* add LAYOUT_iso_blocker_tsangan_wkl_split_bs

* add LAYOUT_iso_blocker_tsangan_wkl

keyboards/pearlboards/atlas/matrix_diagram.md

@@ -0,0 +1,20 @@
+# Matrix Diagram for Pearl Boards Atlas
+
+```
+              ┌───┐
+              │42 │ Rotary Encoder
+┌───┬───┬───┬─┴─┬─┴─┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┐    ┌───────┐
+│00 │01 │02 │03 │04 │05 │06 │07 │08 │09 │0A │0B │0C │0D │0E │0F │    │0E     │ 2u Backspace
+├───┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴───┼───┤    └─┬─────┤
+│10   │11 │12 │13 │14 │15 │16 │17 │18 │19 │1A │1B │1C │1D   │1F │      │     │
+├─────┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴─────┼───┤   ┌──┴┐2D  │ ISO Enter
+│20    │21 │22 │23 │24 │25 │26 │27 │28 │29 │2A │2B │2D      │2F │   │2C │    │
+├────┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴────┬───┼───┤   └───┴────┘
+│30  │31 │32 │33 │34 │35 │36 │37 │38 │39 │3A │3B │3C    │3D │3F │
+├────┴┬──┼───┴─┬─┴───┴───┴───┴───┴───┴───┴─┬─┴───┼──┬───┼───┼───┤
+│40   │  │41   │47                         │4B   │  │4C │4D │4F │
+└─────┘  └─────┴───────────────────────────┴─────┘  └───┴───┴───┘
+┌────────┐
+│30      │ 2.25u LShift
+└────────┘
+```