feat: table-align the explorer action buttons, Install green (v3.6.29)

The explorer buttons sat inline after each AID/detail line, so their columns
moved with the text length.  Now every entry (app / ELF) and every module
line is a row with a fixed-width action column (w-28):

- left cell: the text (module rows are siblings of their ELF entry, indented
  pl-6, so their buttons share the same column as the entry buttons);
- right cell: the buttons, full width of the column, so Delete / Delete All /
  Make selectable / Install line up vertically across rows.

All buttons go through ramActionBtn(label, action, tone): Danger (red) for
Delete / Delete All, Ok (emerald) for Make selectable and the **Install**
buttons, which were blue.  Test pins the column width and the Install tone.

660 frontend / 504 Python green; version 3.6.29; sw simple-v302.

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "pysim-simple-server"
-version = "3.6.28"
+version = "3.6.29"
 description = "HTTP REST server wrapping pysim for the SIMple PWA"
 requires-python = ">=3.8"
 # pysim is a git-only dependency installed explicitly by setup.bat/setup.sh.