Set the default steno protocol to "all"

This is done so that existing keymaps invoking `steno_set_mode` don't
all suddenly break

builddefs/common_features.mk

@@ -93,7 +93,7 @@ ifeq ($(MUSIC_ENABLE), yes)
 endif
 
 VALID_STENO_PROTOCOL_TYPES := geminipr txbolt all
-STENO_PROTOCOL ?= geminipr
+STENO_PROTOCOL ?= all
 ifeq ($(strip $(STENO_ENABLE)), yes)
     ifeq ($(filter $(STENO_PROTOCOL),$(VALID_STENO_PROTOCOL_TYPES)),)
         $(call CATASTROPHIC_ERROR,Invalid STENO_PROTOCOL,STENO_PROTOCOL="$(STENO_PROTOCOL)" is not a valid stenography protocol)

docs/feature_stenography.md

@@ -43,8 +43,6 @@ STENO_PROTOCOL = txbolt
 
 GeminiPR encodes 42 keys into a 6-byte packet. While TX Bolt contains everything that is necessary for standard stenography, GeminiPR opens up many more options, including differentiating between top and bottom `S-`, and supporting non-English theories.
 
-This is the default stenography protocol.
-
 To select it, add the following lines to your `rules.mk`:
 ```mk
 STENO_ENABLE = yes
@@ -67,6 +65,8 @@ The default protocol is Gemini PR but the last protocol used is stored in non-vo
 
 Naturally, this option takes the most amount of firmware space as it needs to compile the code for all the available stenography protocols. In most cases, compiling a single stenography protocol is sufficient.
 
+The default value for `STENO_PROTOCOL` is `all`.
+
 ## Configuring QMK for Steno :id=configuring-qmk-for-steno
 
 After enabling stenography and optionally selecting a protocol, you may also need disable mouse keys, extra keys, or another USB endpoint to prevent conflicts. The builtin USB stack for some processors only supports a certain number of USB endpoints and the virtual serial port needed for steno fills 3 of them.